When Trixie Belden and Honey Wheeler find a cut diamond embedded in the dirt floor of the old abandoned gatehouse, they set out to find whoever left it there.

"Elizabeth, Joyce, Ron and Ibrahim--the Thursday Murder Club--are still riding high off their recent real-life murder case and are looking forward to a bit of peace and quiet at Cooper's Chase, their posh retirement village. But they are out of luck. An unexpected visitor--an old pal of Elizabeth's (or perhaps more than just a pal?)--arrives, desperate for her help. He has been accused of stealing diamonds worth millions from the wrong men and he's...

Jack Mackey has assured his son, Wesley, that the evil woman who pretended for years to be his mother will remain behind bars. But that was before Alex Harris mysteriously disappeared. Now the rules have changed. Wesley and his best friend Amanda decide it is up to them to find Alex, Amanda's soon-to-be stepfather. A little covert detective work leads them to Diamondback Cave--a black hole in the ground invested with rattlesnakes and the hidding...