919 books • 90 series
Book #1: The Poison Puzzle
Book #2: The Double Trouble Puzzle
Book #1: Instinct (Previously Published as Murder Games)
Book #1: Murder Games
Book #1: Murder, Interrupted
Book #2: Home Sweet Murder
Book #3: Murder Beyond the Grave
Book #4: Murder Thy Neighbor
Book #5: Murder of Innocence
Book #1: NYPD Red
Book #2: NYPD Red 2
Book #3: NYPD Red 3
Book #4: NYPD Red 4
Book #5: Red Alert
Book #1: Private
Book #2: No. 1 Suspect
Book #3: Private Games
Book #4: Private London
Book #5: Private Berlin
Book #1: Texas Ranger
Book #2: Texas Outlaw