Mary Roberts Rinehart 
After House 

Known as the "American Agatha Christie, " author Mary Roberts Rinehart produced a vast array of top-notch mysteries over the course of her career, with occasional incursions into other genres. The After House is a gripping whodunit that revolves around a series of grisly axe murders. Set on board a ship, this murder mystery is sure to leave you on the edge of your seat.