The Chain Breaker must fall. Something greater must rise. A dark power builds, but Gavin and his allies can't find its source. Much of what he's learned has been fragments of what he needs. Gavin must find a way to bring it all together if he wants to protect the future. But the key to stopping the danger may involve a sacrifice he's unwilling to make. He can't fight his way past the danger that comes. The Chain Breaker must fall. Who - and what - will replace him?