Laputa: Castle in the Sky (Light Novel)

Legends tell of a floating island in the sky known as Laputa, upon which is rumoured to be treasure beyond a person’s wildest dreams. Sheeta is an orphan girl who is being hunted down because of her necklace, a rare Levistone, which legend says will lead the way to Laputa. One day she is saved by Pazu, a miner apprentice and also an orphan, and together they set out to escape from her would-be captors. Unfortunately, their friendship must go through endless trials in their quest to hide Laputa's location. What is Sheeta’s mysterious legacy, and what hidden motives do Sheeta’s enemies have in regards to finding Laputa?