Published in February 2023, the novel follows members of guerilla gardening collective Birnam Wood as, with the help of a charismatic tech billionaire, they undertake a new project on abandoned farmland.

While reading about a landslide blocking the Korowai Pass Road, Mira sees an opportunity for the group in a seemingly abandoned farm in the nearby rural town of Thorndike.

Unknown to Darvish, Lemoine is illegally mining rare earth minerals in the Korowai National park, causing widespread environmental damage.

Lemoine agrees to allow Birnam Wood to set up a garden on the property, and to provide financial support, promising not to inform Darvish of their activity.

She nervously explores the property armed with a hunting rifle when she discovers the members of Birnam Wood are dead, having been poisoned with 1080 by Lemoine, who intends to frame Tony.

While not explicitly Victorian in style as The Luminaries is, Powers finds similarities with the writing of Jane Austen and George Eliot in Birnam Wood.