Harriet the Hamster Fairy is one book in the massive Rainbow Magic series, part of a sub-series focusing on different pets or animals. The story follows the two human best friends, Kirsty Tate and Rachel Walker, as they embark on a quest to help Harriet, the fairy responsible for making sure all hamsters are happy and well-cared for. Harriet has been banished by the wicked Jack Frost, and the girls must find her magic pet accessory or charm, which Jack Frost has scattered. The absence of Harriet causes chaos, leading to hamsters running wild or being unhappy. Kirsty and Rachel must work together to find the hidden fairy and her magical object to restore order and happiness to the hamster world.
