Evil Within — David Downing

Bastion, an immortal demon dragon, has been imprisoned within the chosen one for many ages. Freed from this banishment, he returns home seeking to return it to the chaotic fiery hell it once was. Reawakening the land's demonic protections, magic ceases to function striking its denizens with fear and strife.

Josh and Amy embark on the hardest quest they have ever faced, to activate four ancient devices before Bastion is able to regain his full strength. Even if they are successful, will they be able to defeat the demon lord and stop the annihilation he desires?