The Charm Bracelet (Fairy Realm #1) by Emily Rodda

The Charm Bracelet
1

Enter the Realm -- a magical world of fairies, elves, gnomes and unicorns. . . !

When Jessie goes to stay with her grandmother, she disccovers an amazing secret--and enters the fairy world of the Realm for the first time. 
In this exiciting adventure, Jessie must outwit the enemies of the Realm before it is destroyed forever!

This enchanting range of books by Emily Rodda was originally published in gift book format as the Storytelling Charms Series under the name of Mary-Anne Dickinson.

(Cover illustrations by Margaret Power)