After years of writing about high, open country, Macfarlane turns the compass downward, and the inversion suits him. Underland is organized around three things humans do with the dark beneath us: we shelter in it, we extract from it, and we dispose into it. That triad gives the book a spine a looser collection of travel essays would lack. Each chapter is a descent into a real place, reported with the author's own body in the frame, squeezing through gaps, wading meltwater, trusting strangers underground. The source material the publisher leans on covers prehistoric art in Norwegian sea caves and the blue interior of the Greenland ice, and those are exactly the sections where the reporting feels most alive.
What lifts this above adventure writing is the deep-time argument running underneath it. Macfarlane keeps pulling back from human scale to geological scale, and the vertigo is real. He wants you to feel how brief our tenure is against the patience of stone and ice, then sit with the uncomfortable corollary: we are now leaving marks that will outlast every language we speak. The nuclear hiding place, a hole dug so that beings tens of thousands of years from now will know to stay away from it, becomes the book's dark hinge. How do you warn a future that may not read, may not speak, may not be human at all? That problem haunts the whole book.
The prose is the obvious draw and, for some readers, the obvious risk. Macfarlane writes at a high lyric pitch, attentive to the texture of rock and the roots of words, and he can turn a slow walk through a cave into something taut. I'll confess the ice chapters were where I stopped reading for adventure and started reading for awe; the calving edge of the Greenland sheet is described with a precision that made me put the book down and just sit. He's also a generous companion to the people he meets, from cavers to scientists, and that human warmth keeps the cosmic scale from going cold.
There's a genuine intellectual payoff beyond the scenery. You finish Underland with a sharpened sense of the Anthropocene as something physical and stratigraphic, a layer being laid down right now, rather than an abstraction. Macfarlane handles environmental dread without preaching; he lets the places carry the argument. The book is also quietly about grief, about burial as a form of care, about the human impulse to hide what we love and what we fear in the same darkness. It's more emotional than its geology-heavy premise suggests.
Why you should read
- Readers who loved Macfarlane's The Old Ways or Barry Lopez's Arctic Dreams
- Fans of literary nature writing that thinks in geological time
- Anyone drawn to the Anthropocene, deep time, and our environmental legacy
- People who like reported essays with a strong philosophical undertow
What to expect
- The prose runs lush and the pace is meditative; readers wanting a brisk, plot-driven narrative may find some chapters slow going
- Some readers find the lyricism tips into overwriting in its densest passages; if you prefer plainer, more direct nonfiction, the style may wear on you
Two honest cautions. This moves at a contemplative pace; it's a book for evenings, read in sections, not a single sitting. And the lyricism that rewards patient readers tips, in places, toward the overwritten. A fair number of readers in the large review thread admire the book deeply while wishing Macfarlane trusted a plain sentence more often, and I felt that too in the densest passages. If you want propulsion and clarity over atmosphere, those stretches may test you. But for readers who care about landscape, language, and the long view, the density is the point, and the book will alter how you regard whatever lies beneath your feet.
