Carolyn Wells 
Deep Lake Mystery 

The quaint town of Deep Lake, Wisconsin is rocked to its core when millionaire Sampson Tracy is found murdered in a locked room — with a nail driven into his skull and his corpse festooned with bizarre ritualistic items. Is the rich man’s slaying the work of a local cult or is someone closer to the Tracy household trying to make it look that way? Curl up with this classic locked-room whodunit from Carolyn Wells, author of
The Clue.