The Wilds is the third and final novel in the Detective Elin Warner series by New York Times bestselling author Sarah Pearse. Published by Penguin Books, this 400-page thriller follows Detective Elin Warner as she investigates the disappearance of a young woman named Kier Templer in a remote Portuguese national park. When Kier vanishes without a trace during a trip, leaving behind only a disturbing map, Elin must navigate an isolated campsite full of secretive strangers as the park's wild beauty turns sinister.

The series began with The Sanatorium, a Reese's Book Club Pick and instant New York Times bestseller, and continued with The Retreat. The Wilds concludes the trilogy by resolving the unanswered questions that have plagued Elin throughout the series. Praised by Oprah Daily, the Los Angeles Times, and bestselling authors including Shari Lapena and Jeffery Deaver, the novel features short, dialogue-rich chapters and a serpentine plot with shocking twists.