Knock, Knock! Who's There?
James Hadley Chase
The Columbo Phile: A Casebook
Mark Dawidziak
Night Lights (Dr. Seuss/Cat in the Hat)
Tish Rabe
Cat in the Hat Knows a Lot About That (1)
Serpent's Silver
Piers Anthony & Robert E. Margroff
Kelvin of Rud (2)
The Girl Who Disappeared Twice
Andrea Kane
Forensic Instincts (1)
Midnight at the Haunted Hotel: Boxcar Children: You Solve the ...
Gertrude Chandler Warner & Jm Lee
The Boxcar Children Interactive Mysteries (1)
Ringworld Throne
Larry Niven
Ringworld (3)