Much of Earth is underwater - in the high mountains at the top of the world Lily survives with her mother and her people . . . but she feels trapped. Elsewhere, beneath the exclusive sky-cities that tower above the waves, Fox has been waiting too. But when Fox and Lily meet on a virtual plane, they realize the time has come to act. The world must be made whole again, even if it means losing each other!

The third and final installment in the brilliantly imagined, hugely romantic and poetically told trilogy set in a frighteningly realistic future.

This book has been graded for interest at 12+ years.

There are 320 pages in this book. This book was published 2011 by Pan Macmillan .

After an early career as a teacher and freelance feature writer for major Scottish newspapers, Julie Bertagna has quickly established a reputation as an author of powerful and original fiction for young people. She lives in Glasgow with her husband and young daughter.