It's been some years since Ash and her friends battled against the raptors and the Adults, but they couldn't halt the powerful progress of evolution. Still, the legacy of the Agles pervades new generations of wild and wilful teens. This is the story of Phoenix, earthbound and to her own mind deformed, but who is in love with the image of perfection, the air Agle, Gabriel. What will she risk to be with him? The stakes are high: a delicate balance has been formed between the rodents, raptors and Agles in the rebuilt city. Is Phoenix willing to jeopardise their safety? What chance does she have when the Adults return, claiming civilisation for themselves once and for all. Instead of forging ahead, it seems they want evolution to travel in reverse.