Ark lives a mile up from the ground \- in the last trees in the world.
But Ravenwood faces a new threat by the empire that wants its precious wood.
Ark and his friends must travel deep into enemy heartland to find out what evil is planned.
Awaiting them is a glittering forest of glass skyscrapers, a twisted echo of home.
But the wildlife within is infinitely more dangerous \.
- Format: Paperback
- Pages: 464 pages
- Publisher: Chicken House Ltd
- Publication Date: 03/05/2012
- Category: Fantasy
- ISBN: 9781906427474