Fantasma Libro Hydra

iUniverse

The Adventures of Jewel Cardwell: Hydra’S Nest (English Edition)

Audible

Soul Antiquary                                  

Hermes Press

The Phantom: The Complete Avon Novels: Volume #8 The Hydra Monster (PHANTOM COMP AVON NOVELS)

Yearling

Hydra                                            

Audible

Hydra                                            

Hydra

Maléfices (French Edition)                      

Scholastic Inc.

Hydrant-Hydra: A Branches Book (The Binder of Doom #4) (English Edition)

Hydra Publicatoins

Dearly Remembered: Grave Reminders Book 2 (English Edition)

ORENDA BOOKS

Hydra (Six Stories Book 2) (English Edition)    

Deadman's Tome Jr The Hydra (English Edition)