Rectar's demonic invasion of the west is gaining momentum - an unrelenting horde unhindered by food or sleep. Only the undermanned Splintering Isles lie between the demons and the human kingdom of Brevia. If the islands fall, the rest of Tenalp will soon follow.
The Three Races have yet another problem - Castallan. The traitorous wizard has raised a deadly rebellion and declared himself King of Humans. He believes himself safe inside the impenetrable Bastion fortress, but Darnuir, now King of Dragons, intends to break those walls at all costs.
To face these threats, all dragons, humans and fairies must truly unite; yet old prejudices undermine Darnuir's efforts once again and he finds himself turning to unlikely new allies.
As the true intentions of all are revealed, so too is a secret that will change the entire world.