Self Explanitory for those who have read the first two books. In short it is the story of Vanessa as she explores the mysteries of the mirror world meeting both old and new characters.

Will is on the way over to the Goyl side. His transformation is complete. He's trying to fight it. But is he strong enough?

Will has turned into a Goyl. Goyl don't feel. So why is Will suddenly feeling strange attachments to creatures he doesn't know?

"Six months and thirteen days. That is how long you have been here." A prisoner of war, a slave to the Goyl.