"In the Woods" is a psychological mystery novel by Tana French, first published in 2007. It is the first book in the Dublin Murder Squad series. The story is centered around Detective Rob Ryan and his partner, Detective Cassie Maddox, who are investigating the murder of a twelve-year-old girl named Katy Devlin in a small town near Dublin, Ireland.It received critical acclaim and several awards, including the Edgar Award for Best First Novel. Tana French's debut established her as a prominent voice in contemporary crime fiction.