Georgie Adams 
Last Portal 
Book 13

The Silversmith travels to the Outworld; she has come to take Sesame to Karisma for the last time. Her Seeker must return the jewellery box containing the bracelet and twelve charms, and find the missing key, which is needed to lock the heart and complete the bracelet, reuniting all thirteen charms. Charmingly written stories, appealing characters, a beautifully imagined world with its own language — plus a silver charm to add to your bracelet with each book. Collect them all — heart, horseshoe, shell, dolphin, moon, lantern, four leaf clover, snowflake, star, coin, horseshoe, cat and key — and complete the bracelet.