As Prince Valerian and Merry flounder in the aftermath of their terrible losses, they must adjust to the changes that have been wrought upon their lives. Their sole comfort lies in the belief that their nemesis, Liall Guinness has perished and can no longer torment them.

But they are wrong. Liall Guinness is very much alive, and willing to sell his soul in order to achieve his vengeance.

As the threat of invasion looms, Valerian and his peers clash with the elders who are unwilling to embrace new ideas. If Valerian cannot convince them to change their minds, then despite having the great dragons on their side, the land will run with blood.