Haunting of Freddy (Golden Hamster Saga Series #4)

Freddy Auratus - a literate golden hamster of the highest order - is writing his latest story, "The Lord of the Ferrets," when his characters, a sixteenth-century poacher named Grim Harry, and his giant, ferocious ferrets, come to life! Soon, Freddy and his pals are on their way to an English castle - and it's up to them to defend a human family and a colony of nervous rabbits from some vengeful ghosts from the past!