*Soon to be a TV series*

A Goodreads Most Anticipated Fantasy, Science Fiction, and Horror Book of 2024
Jimmy Fallon's Book Club Top Four Pick

For fans of Never Let Me Go and The Giver, an elegant and exhilarating literary speculative novel about an isolated town neighbored by its own past and future, and a young girl who spots two elderly visitors from across the border: the grieving parents of the boy she loves.
Sixteen-year-old Odile is an awkward, quiet girl vying for a coveted seat on the Conseil. If she earns the position, she'll decide who may cross her town's heavily guarded borders. On the other side, it's the same valley, the same town. Except to the east, the town is twenty years ahead in time. To the west, it's twenty years behind. The towns repeat in an endless sequence across the wilderness.

When Odile recognizes two visitors she wasn't supposed to see, she realizes that the parents of her...