One August morning two seven-year-old girls go missing — Calli Clark, a sweet, gentle girl suffering from selective mutism brought on by a tragedy when she was a toddler; Petra Gregory, Calli's best friend, and her voice. Gudenkauf deftly weaves the threads of suspense, and eventually reveals the answers lie trapped in the silence of unspoken secrets. You can find this book and Gudenkauf's new title These Things Hidden as well as other psychological fiction in the library's collection.