Lumen Island - Book 1. Lumen are mysterious powerful luminescent orbs of pure magic - they are like the back bone of all magical things. There's a rumour going around about a living skeleton, does he come out on the night of Halloween? When will the Lumen reveal themselves?What secrets do the Lumen truly hold?Find out in the first book of the Lumen Island series and follow Cecilia and her friends as they confront their school bullies who took their Halloween sweets and discover the wonders of the Lumen. Audience: Children. Series: Lumen Island. Book no.: 1.