149 books • 19 series
Book #1: The Tragedy of X
Book #2: The Tragedy of Y
Book #3: The Tragedy of Z
Book #4: Drury Lanes Last Case
Book #1: The Black Dog Mystery
Book #2: The Golden Eagle Mystery
Book #3: The Green Turtle Mystery
Book #4: The Red Chipmunk Mystery
Book #5: The Brown Fox Mystery
The Siamese Twin Mystery
Dutch Shoe Mystery
Book #1929: The Roman Hat Mystery
Book #1932: The Greek Coffin Mystery
Book #1932: The Egyptian Cross Mystery
Book #1: The Campus Murders
Book #2: The Black Hearts Murder
Book #3: Blue Movie Murders
Book #1: Where Is Bianca?
Book #2: Who Spies, Who Kills?
Book #3: Why So Dead?
Book #4: How Goes the Murder?
Book #5: Which Way to Die?