From the internationally best-selling author of Measuring the World and F, an eerie and supernatural tale of a writer's emotional collapse

"It is fitting that I'm beginning a new notebook up here. New surroundings and new ideas, a new beginning. Fresh air."

This passage is from the first entry of a journal kept by the narrator of Daniel Kehlmann's spellbinding new novel. It is the record of the seven days that he, his wife, and his four-year-old daughter spend in a house they have rented in the mountains of Germany—a house that thwarts the expectations of the narrator's recollection and seems to defy the very laws of physics. He is eager to finish a screenplay for a sequel to the movie that launched his career, but something he cannot explain is undermining his convictions and confidence, a process he is recording in this account of the uncanny events that unfold as he tries to understand what, exactly, is happening around him—and within him.