 They must recruit the help of outlanders to destroy the fiendish Vlagh and prevent its attempt at world conquest.The Vlagh is a creature whose more remarkable power is the ability to consciously direct the evolution of its minions, adapting them to the situation as required (the evolution is not instantaneous, but it takes months or even just days, as it is seen in the second book, "The Treasured One").Most of Vlagh's creations are vaguely insect-like, venomous and violent, although some creatures have been bred human-like enough to pass as humans (and are used as spies).