The Magic Key (Fairy Realm No. 5)

The Magic Key (Fairy Realm No. 5) by Rodda, Emily. hardcover edition. ISBN: 9780060095956.

Enter the realm of enchantment. Jessie returns to the magical Realm for the fifth time. The magic of the Realm has rescued her home from terrible fires, and she has saved the Realms magical people from a wicked imposter, kept the griffin guards under control, and saved the fairy-apple trees. Now its Jessies birthday, and she finds herself chasing a rainbow. Shes got to get to the end before it fades, or she may never get home! Then there are the Rainbow Fairies, who desperately need Jessies help to find a lost magic treasure. Until its found, theyll never get back to the secret garden.