Who killed Brooke Donovan? It's the biggest mystery of the summer, and everyone in Castle Cove thinks it's the wrong guy. Fans of One of Us Is Lying and Riverdale can't miss this page-turning who-done-it that's sure to be the next must read Young Adult thriller! What would Agatha Christie do? That's what Alice Ogilvie asked herself last summer, when her basketball-star boyfriend Steve dumped her. Then she took a page out of Agatha Christie's real-life playbook, and just like the master mystery novelist, she disappeared herself. Where she went during her five-day absence is the biggest mystery in Castle Cove-or it was, at least. Because now, another one of Steve's girlfriends has vanished: Brooke Donovan, Alice's ex-best friend. And this time, it doesn't look like Brooke will be coming back. . . . Enter Iris Adams, Alice's tutor. Iris has her own reasons for wanting to disappear, though unlike Alice, she doesn't have the money or the means. That could be changed by the hefty reward Brooke's grandmother is offering to anyone who can share information about her granddaughter's whereabouts. The police are convinced Steve is behind the disappearance, but Alice isn't so sure, and with Iris on her side, she just might be able to prove her theory. What would Agatha Christie do? Alice and Iris don't need to ask twice. There's a grab bag of clues the police are ignoring, and a list of suspects a mile long. If one thing is clear, it's that whatever's going on, it has the makings of a great mystery, and Agatha Christie would never ignore that. Only, Alice and Iris have no idea how many secrets the town of Castle Cove is hiding . . . or how much danger they're about to walk into.