Atai

The Keys of the Power have been retrieved, but the mission is not yet over and now reaches its climax. The chosen ones are more aware than ever that everything they have experienced and faced could prove useless and that the prophecy might demand the ultimate sacrifice from them.
The fortress of Atai guards secrets that the chosen ones must uncover before they can bring life back to their dying world, and the Enemy will go to any lengths to prevent them. Through the realms of dreams, at the junction of life and death, Avir finds the answers he was searching for, while his friends must face an old enemy looking for a terrible revenge. A revenge that will also affect Avir, and could take him away from his friends for ever.
The Errant must decide again what part he will play in the final decisive battle; he is supported by the noble Se'ara, "Smiling eyes", and the great wisdom of a people remembered only in legend, the Gliders of the Mountains.