Back in the Nest, Kala finds that the Power, unsettled, has closed ranks. In the midst of the curfew, the Open Hand moves in the shadows having suffered some significant losses but also adding new faces. The Museum, The Nursery, The Other Side and The Rubbish Tip will be key when the Only One tries to reach her final objective: the Sphere. Even as it seems more and more unlikely that her plan will succeed, Kala will also have to fight for her love of the elusive Beo, to keep hold of a father who seems to have lost his mind and to put together the puzzle of her origins.
After the success of Sin alas (Wingless) and Las alas de Ícaro (The Wings of Icarus), The Flight of the Phoenix brings The Sphere trilogy to a close.