Quicksilver (reissue) Read online

  “How do we find that?”

  “Hornfels is very site specific—it’s not all over the place.”

  Shelburne glanced at Walter at the map cabinet. “Meaning look at a map?”

  “To begin with. But hornfels zones can be small and not always mapped.”

  “So we could be shit-out-of-luck?”

  “Not necessarily. We can look for the birthplace. Hornfels gets born when a dike of hot magma intrudes the rock already in place—call that the parent rock. The dike cooks the parent rock, metamorphosing it. And then the magma cools and hardens into igneous rock.”

  “You have a name for that one?”

  “Most likely diorite.”

  “Meaning some definition from the Greek?”

  “Meaning we have diorite cobbles in the specimen.” I made a mental note to look up the source of the word, when a client wasn't quizzing me. “So that'll be one signpost we look for—a diorite intrusion.”

  Shelburne nodded. “And what about the cross?”

  “That’s a gift. That tells us the nature of the parent rock. The chiastolite is a carbon inclusion, which suggests that the parent rock contained organic matter which became the carbon. So that parent rock is likely a carbonaceous slate that got cooked into chiastolite hornfels when the magma intruded.”

  “Could Henry have figured that out?”

  “You said he’s an amateur geologist.”

  “He’s also a romantic. He’d follow that cross and call himself a crusader.”

  “You want romance?” I set down my coffee and cupped my hands. “Here’s the contact zone, where the hornfels is born. You'll find rings around the intrusive diorite dike. The outer ring is the slate. The inner ring, more cooked, is the hornfels.”

  “Very romantic.”

  “You want to follow the cross? Look for the hornfels that holds it. I can freaking well say that we're looking for a contact of diorite and slate. And if we get lucky we'll find the inner ring—the chiastolite hornfels aureole that sheaths the dike.” I picked up my coffee. “There’s romance for you. Geology gets downright sexy.”

  Shelburne winked. “You put on a good dog-and-pony show.”

  “It’s not...”

  “It’s a compliment.”

  I shrugged. It was really more of a petrology-and-geochemistry show, but never mind.

  “Yoo hoo!” Walter called, from the table beside the map cabinet. “Come on over and let’s see where we are.”

  I trailed Robert Shelburne toward the map table. Along the way he detoured to the kitchen sink and dumped his coffee, whispering to me, “Can’t stand the stuff.”

  I didn’t know what to think of that. Of him. He’s considerate of Walter’s need for the coffee ceremony. Unwilling to decline the offer. Unwilling to drink the stuff. Willing to let me in on it. Flirting—or not flirting—with his talk of romance. Handsome enough to flirt by rote and expect responses.

  Then again, what was I doing talking about the sexiness of geology?

  Too long without a date, Ms. Show-off Geologist?

  Walter would say so, Walter who had his own lady love and worried about my lack of a serious love life. If I'd been looking, I would have looked twice at glib Robert Shelburne and then kept on looking.

  In any case, he was looking for something else entirely. His brother, of course. Gold, no doubt. The family legend, perhaps. Romance in a more quantifiable vein.

  Shelburne and I joined Walter at the map table.

  Walter was hunched, hands pinning a map to the table. It was a geologic map of the gold country, with symbols showing the major rock units. Walter’s crosshatched hands were weathered symbols in and of themselves. He was a seasoned pro, with rocks and clients. If he’d noticed the coffee dump, he ignored it. If he’d paid mind to the dog-and-pony comment, he didn’t mention it. He lifted a hand, patted my arm. Don’t take it to heart.

  I hadn’t.

  “This is the Mother Lode,” Walter said. “It’s roughly three hundred square miles. If we narrow that to likely hornfels neighborhoods, we’re looking at many dozens of square miles.”

  “I can do better than that,” Shelburne said.

  Walter looked up, from map to client.

  “I can narrow the neighborhood down to about twenty square miles.” Shelburne ran his finger across a slice of the gold belt. “That’s where my father searched, following the clue letter. That’s where he dragged Henry and me searching. What you need to do is figure out where in the ‘hood this rock came from. That’s where Henry will be searching.”

  “Then we’ll want a larger-scale map.” Walter moved to the map cabinet. “Meanwhile, help yourself to more coffee, Mr. Shelburne. We have donuts, as well.”

  The coffee ceremony was history, I saw. Donuts now. Walter had just welcomed Robert Shelburne onto the team.

  Shelburne threw me a wink and said to Walter, “You have any glazed?”

  ~ ~ ~

  Walter and I spent the remainder of the day on more sophisticated analysis, while Robert Shelburne went out for last-minute errands and to book a motel room for the night.

  Normally we would have spent more time on the labwork but Henry Shelburne set our timetable.

  Find Henry before he finds the source. Hunt for the source to find Henry.

  Out there in the wild. Missing. Looking like the Henry in the photo because I could not conjure up an alternative. Squint-eyed, on some mission, suicidal or not. In need of finding, or not.

  Either way, we’d signed on to find him.

  PART THREE

  Sierra Nevada Gold Country

  Tuesday

  ~ the hunt continues ~

  CHAPTER 8

  The following day we left at dawn, taking Shelburne’s pricey Land Rover.

  We had to cross the spine of the Sierra Nevada range, traveling from the austere eastern side to the lush western flank, deep into gold country, deep into the heart of the Mother Lode.

  Walter, in the back seat, was re-reading Waldemar Lindgren’s Tertiary Gravels of the Sierra Nevada of California. The gold-bearing gravels. The book was a classic. An original copy would fetch a price in the hundreds. This morning I’d asked what Walter was downloading to his tablet. He’d said, “The bible of the deep blue lead.”

  That took me aback. I’d thought he used his tablet strictly for online research or sharing docs with colleagues on the other side of the world. But books? He read his books on paper—poetry, biographies, and mysteries, from the current crop all the way back to Sherlock because, he liked to point out, Sherlock Holmes was the first forensic geologist. As for technical books, he owned a worn paperback of Lindgren that would have served him perfectly well in the field. Instead, he was reading the bible of the deep blue lead in freaking pixels?

  I’d said, “Since when did you start reading your books in pixels?”

  “Since I looked in the mirror and saw an old man.”

  “You’re not old,” I’d said firmly. “You’re just an ink-and-paper man.”

  “Old dog can’t learn new tricks?”

  And now, as I rode shotgun in Shelburne’s Rover, I could not help glancing into the side-view mirror, spying on Walter in the back seat. Hair grayer than when I’d last paid attention?

  Funny thing: Walter had looked old to me when I first met him. I was eleven and he was in his forties. To a kid, that was old. Over the following years as I worked in the lab—part-time after school and full-time in the summers—the only aging I paid attention to was my own, particularly when I crashed into my teens. Then, during my college years, I would come home for the summers and grace the lab with my learning, spouting textbook tidbits like they were tweets. During that stretch I didn’t notice either of us aging. I was too busy proving myself. By the time I’d completed grad school and took my book-learning back into the field what I finally noticed was the authenticity of Walter’s skills.

  Old? He’d perhaps grown a bit vain, fretting over his thinning hair and creasing face.
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  I turned from the mirror and firmly directed my attention to the scenery.

  Right now, the road we traveled was unknown to me. In fact, the Mother Lode was mostly unknown to me. Not my country. It was pretty enough, and I never met mountains I didn’t love, but I was a stranger here.

  The road worsened. Ungraded, now.

  In the back seat, Walter was stone silent, still deep in Lindgren.

  I turned to look at him.

  Head bowed over his tablet. Finger swiping the touch screen, onto the next page.

  Swipe.

  Swipe.

  On the hunt. Nothing old about that old dog.

  I returned my attention to my own tablet. I’d downloaded Lindgren as well, taking my cue from my mentor.

  Lindgren never would have predicted the can of worms he was opening, with his guideposts to gold.

  CHAPTER 9

  Shelburne parked the Land Rover on a nearly hidden fire road, jarring Walter out of Lindgren.

  Walter shut his tablet and looked around. “Where are we?”

  “At the start of our hike,” Shelburne said.

  Walter said, “Pass me the road map,” and after receiving and perusing it he said, “Two miles up the road we’ll find a proper trailhead.”

  “This is the way we always came. My dad blazed this trail with his ego.”

  I said, “That’s some whacked-out reason to take it.”

  “And,” he said, “it’s faster.”

  Walter folded the map and returned it to Shelburne. “Your call.”

  We geared up and Robert Shelburne took the lead.

  And so we embarked upon Shelburne’s father’s rogue route, unmarked on the map, sign-less at the head, steep at the get-go, infested by brush, scented by that odd vegetative smell. Fifteen minutes into our climb we came upon the silver bandana littering the ground. Flagging our trail. Thirty minutes into our climb we got hit by falling talus.

  What the hell, Henry?

  In hurried consultation—Shelburne up above on the bedrock ladder, me three switchbacks below, Walter still down on the traverse—Shelburne urged us to hurry, saying that if it was Henry up on the ledge then we had the chance to catch up to him, assuring us that the rocks had been an accident.

  We might have debated the issue but Shelburne quickly pushed onward, upward, and it was a shorter pitch to the top than to turn around and traverse back across the rock field.

  I picked up my pace.

  Walter picked up his.

  Shelburne shouted his brother’s name twice and when there was no reply he saved his breath.

  Nothing more fell from the ledge above and in the course of my climb I began again to entertain the theory of the squirrel or the bear.

  I soon caught up with Shelburne, hiking so close I had the leisure to examine his red backpack. I distracted myself with the question of his pack. It was an Arcteryx Altra, latest model, one I admired and would not afford. Made sense, I supposed, that Shelburne had a state-of-the-art pack because the backpack he would have used as a kid being dragged along by his father would not fit him now, as a grown man. I also took note that the floating-top lid of the Arcteryx was stained and one side water-bottle pocket had been patched with Gore-tex fabric repair tape.

  I carried duct tape to repair rips and snags. I made a mental note to pick up some Gore-tex tape next time I shopped at REI.

  I shifted my assessment down to his boots. Asolos, top of the line. Creased at the toe break, slightly worn around the edges of the Vibram soles. Broken in.

  I wondered where he’d done his hiking.

  In another five minutes we topped the climb, which leveled onto the narrow ledge.

  Nobody was there waiting.

  It was a false ridge, because the slope rose another couple hundred feet into woods again, up to the true ridge, sky-silhouetted above. A couple of yards westerly, beneath the slaty cliff, a rotten patch spilled talus onto our ledge and fanned out to the rim.

  We stood rooted.

  Looking. Listening. All of us winded. Catching our breath.

  Walter finally said, “I would like to sit.”

  “If it was Henry he’d have gone that way.” Shelburne pointed easterly, to the far end of the bedrock intrusion, where the ledge disappeared into the woods. “I’ll have a look.” He set off.

  Walter and I shucked our packs and sank to the rock. It was chilly. We retrieved our parkas. We grabbed our water bottles and drank. The water was sweet cold eastern Sierra water, bottles filled back at the lab. Cold water down my gullet. I was now doubly chilled. The rock beneath my butt was stone cold. Not enough sun to warm the phyllite. Even its golden sheen was dulled in this gray light. I shivered. I drew up my knees, hugging them.

  Walter got out the trail mix. I freed one hand, opened my palm, and he filled it. I nibbled like a squirrel.

  The breeze that had been coming and going now came stronger, more consistent.

  I sniffed for the odd odor but smelled nothing other than salty peanuts and sweet dried pineapple.

  And then Shelburne returned, shucked his pack, and sank to the rock beside me. He shook his head.

  I said, “So you think it was him? Or not?”

  “He’s gone now.”

  Shelburne hadn’t qualified that with an if, if it was Henry. I said, “Maybe we should get moving.”

  “We won’t catch him now. He’ll be hiking fast. No pack—he’s likely made camp somewhere. He’s got the edge. We’ll need to keep tracking him.”

  Walter nodded. “I’m content to rest here another moment.”

  I studied my partner. Face still slightly flushed, even in the growing chill. Hair mussed and, yeah, graying. He still wore his sunglasses. His eyebrows—gray flecked with brown like feldspar in granite—bushed above the rims of his shades. He caught my scrutiny and lifted his brows.

  I said, “Yeah, feels good to sit.” The rock was warming beneath my butt. Sit here much longer, though, and I’d start asking questions.

  I watched Shelburne retrieve his water bottle from the side pocket of his backpack. He chose the narrow-mouth bottle. The other bottle, in the patched pocket, was a wide-mouth, more suited for carrying extra water. At least, that’s the way we did it, although I carried two spare bottles in my pack pockets and the quick-grab drinking bottle clipped to my belt with a carabiner. Then again, I’m something of a gear-head.

  So was Shelburne.

  I watched him drink from his sleek silver bottle emblazoned with the word titanium; major cool factor; no price tag attached but none needed; if you had to ask, you would not want to pay it.

  Shelburne was a gear-head with expensive tastes. Still, you had to know what you needed in the field before you laid out good money. And if you were going to lay out good money you’d want to get plentiful use of your gear.

  I watched him replace his titanium bottle in the pocket of his Arcteryx pack. I said, “Been up here recently?”

  “Here? Not since I was a kid.”

  “But you still do some backpacking?”

  He saw me looking at his grown-up pack. “My job takes me afield now and then. I’ve had to site-scout a location or two in this general neighborhood. Investment opportunities.”

  “Gold?” Walter asked.

  “Sadly, no.”

  “What if Henry finds the source of that rock? And there is gold.”

  Shelburne took the chunk of ore out of his pack and held it cupped in his hands. Blue face hidden, melon-seed nugget just visible above the fleshy part of his palm. Otherwise, in the dull light, the rock looked dull. No sparkle of mica, or of the microscopic gold flakes. Nevertheless, Walter and I leaned in, the way you'd lean in on a cold day when somebody lights a fire.

  Shelburne smiled. “Wicked alluring, isn't it?”

  I had to admit that it was.

  Walter tore his attention from the ore, back to Shelburne. “You didn't answer. What if there is gold?”

  Shelburne put the rock away. “My interest li
es in saving Henry.”

  And Henry’s interest? I studied the talus spilling across the ledge. It told me nothing. Talus won’t hold a footprint. There was no way to tell what, or who, had kicked those rock fragments over the edge.

  Easy to do, though.

  I said, “So if it was him up here, what was that about?”

  “Make sure I’m coming.”

  “Not just you—us too.”

  Shelburne nodded. “Yes, of course, he'll assume I followed his laptop clues and hired the help I need.”

  “And then he rains rocks down on us.”

  Shelburne rose. He shouted “Henry!”

  And then he walked over to the talus pile and picked up a nasty-edged rock fragment. He angled his wrist and flung it, like you’d skip a rock. It sailed out from the ridge, a good distance, and then arced down. He said, “No, I don’t think Henry was throwing rocks at us. Wrong angle.” He found another spot, standing now within the talus field. He stood rigid and then suddenly he jerked, like he’d been stung by wasp. His foot jerked out, dislodging a small pile of rotten rock. The stuff skittered, some of it skittering over the edge. It did not arc.

  He turned to us. “Henry occasionally has mini-seizures. In consequence, you understand.”

  I understood.

  It was entirely possible.

  I’ve done it myself, dislodging loose rock, sending it over the edge of a trail.

  “We good?” Shelburne asked.

  Walter and I exchanged a look. A nod.

  Good enough.

  Or so I hoped.

  CHAPTER 10

  When Robert put the rock away, Gail smiled.

  Keep it safe.

  She had not known he brought it. The last she had seen of the ore was through the window of the lab. The geologists had taken charge.

  If she was Robert she would have reclaimed it too. She would have brought it along, too.

  She put away her binoculars.

  She had found a new lookout to watch them on the ledge. Walter and Cassie did what she'd expected, sat and rested and drank and ate. Recovering from their climb. Weak.