The white road of the moon
(Book)

Imagine you live with your aunt, who hates you so much she's going to sell you into a dreadful apprenticeship. Imagine you run away before that can happen. Imagine that you can see ghosts -- and talk with the dead. People like you are feared, even shunned. Now imagine...the first people you encounter after your escape are a mysterious stranger and a ghost boy, who seem to need you desperately -- though you don't understand who they are or exactly what they want you to do. So you set off on a treacherous journey, with only a ghost dog for company. And you find that what lies before you is a task so monumental that it could change the world.