About the Book Harriet the hamster fairy's hamster Twinkie is in trouble and Harriet must rescue her from Jack Frost's goblins. Book Synopsis Harriet the Hamster Fairy's hamster, Twinkle, is missing! Help friends Kirsty and Rachel rescue the magical hamster in the fifth title in the Rainbow Magic Pet Fairies series. Fairyland's magical pets help pets in the human world find good homes, but Jack Frost has stolen the fairies' pets! The magical pets have escaped Jack Frost's castle and are now lost