17 Hard

Blind 17

The Mystery Cases of Detective Philo Gubb : 17 Mysterious Cases: The Hard-Boiled Egg, The Pet, The Eagle's Claws, The Dragon's Eye…

Ellis Parker Butler

The Mysteries of Philo Gubb, School Detective : 17 Mysterious Cases: The Hard-Boiled Egg, The Pet, The Eagle's Claws, The Oubliette, The Un-Burglars, The Dragon's Eye, The Progressive Murder…

Ellis Parker Butler