75 books • 1 series
Alias The Ghost
The Witches' Moon
Sinister House
The Show Must Go On
The Tudor Garden Mystery
The Silver Horseshoe
The Jockey
Mister Big
The Con Man
The Snark Was a Boojum
The Hangman
Sorcerer's House
The Hand Of Fear
The Evil of Li-Sin
The Football Pool Murders
The House Of The Goat
The Seven Clues
Mr. Whipple Explains
The Squealer
The Royal Flush Murders
The Third Key
The Glass Arrow
Murder In Manuscript
Grim Death
