Valley, a Gujarati-American boy and his father build primitive aspens out of chunky, black-and-white pixels. They’re writing a game that feels to the boy like walking through the forest primeval.
These people are nothing to Plant-Patty. And yet their lives have long been connected, deep underground. Their kinship will work like an unfolding book. The past always comes clearer, in the future.
Years from now, she’ll write a book of her own, The Secret Forest. Its opening page will read:
You and the tree in your backyard come from a common ancestor. A billion and a half years ago, the two of you parted ways. But even now, after an immense journey in separate directions, that tree and you still share a quarter of your genes. . . .
She stands in the clearing at the top of the rise, looking out over a shallow gully. Aspens everywhere, and it boggles her mind that not one of them has grown from seed. All through this part of the West, few aspens have done so in ten thousand years. Long ago, the climate changed, and an aspen’s seeds can no longer thrive here. But they propagate by root; they spread. There are aspen colonies up north where the ice sheets were, older than the sheets themselves. The motionless trees are migrating—immortal stands of aspen retreating before the latest two-mile-thick glaciers, then following them back north again. Life will not answer to reason. And meaning is too young a thing to have much power over it. All the drama of the world is gathering underground—massed symphonic choruses that Patricia means to hear before she dies.
She looks out over the draw to guess which way her male, this giant aspen clone, might be headed. He has been roving around the hills and gullies in a ten-millennium search for a female quaking giant to fertilize. Something on the next rise punches her in the chest. Carved out from the heart of the spreading clone, a housing development sits among a ribbon of new roads. Condos, a few days old, cut through several acres of the root system of one of the earth’s most lavish things. Dr. Westerford closes her eyes. She has seen dieback across the West. Aspens are withering. Grazed on by everything with hooves, cut off from rejuvenating fire, whole groves are vanishing. Now she sees a forest, spreading across these mountains since before humans left Africa, giving way to second homes. She sees it in one great glimpse of flashing gold: trees and humans, at war over the land and water and atmosphere. And she can hear, louder than the quaking leaves, which side will lose by winning.
IN THE EARLY EIGHTIES, Patricia heads northwest. Giants still grow in the Lower 48, pockets of old growth scattered from Northern California on up to Washington. She means to see what uncut forest looks like, while there is any left to see. The western Cascades in a damp September: nothing in her experience prepares her. From mid-distance, with no clue for scale, the trees seem no larger than the biggest sycamores and tulip poplars out East. But up close the illusion disappears, and she’s lost in reason’s opposite. All she can do is look and laugh and look some more.
Hemlock, grand fir, yellow cedar, Douglas-fir: buttressed monster conifers disappear in the mist above her. Sitka spruces bulge out in burls as big as minivans—pound for pound, a wood stronger than steel. A single trunk could fill a large logging truck. Even runts here are big enough to dominate an eastern forest, and each acre holds at least five times as much wood. Beneath these giants, way down in the understory, her own body seems freakishly small, like one of those acorn-people she made in childhood. A knothole in one of these columns of solidified air could be her home.
Clicks and chatter disturb the cathedral hush. The air is so twilight-green she feels like she’s underwater. It rains particles—spore clouds, broken webs and mammal dander, skeletonized mites, bits of insect frass and bird feather. . . . Everything climbs over everything else, fighting for scraps of light. If she holds still too long, vines will overrun her. She walks in silence, crunching ten thousand invertebrates with every step, watching for tracks in a place where at least one of the native languages uses the same word for footprint and understanding. The earth gives beneath her like a shot mattress.
An exposed ridge takes her down into a basin. She swings