Brothers Hadyn and Ewan Barlow find an ancient portal to the world of Karac Tor and discover they have been called to this land to serve as champions for the great Aion, who has been absent for many years. The country is in peril as Nemesia, a witch following the orders of the Devourer, turns young people into an army of nameless and mindless followers.
The grey, black and white monks remain faithful to Aion and discover that the Book of Names, a magical text that contains all the names and accomplishments of every person who has been and will be in Karac Tor, has nothing but blank pages for the future generations as a result of Nemesia’s actions.
Both Hadyn and Ewan have been given special gifts to battle against the evil taking over the land, and the Devourer orders Nemesia to have the boys stopped. She captures Hadyn and begins a ceremony to free darkness from the otherworld into Karac Tor. Ewan, along with a handful of Aion’s followers, rescue Hadyn and the Nameless, but not before Nemesia releases evil throughout the land.
Archibald, the ruler of Karac Tor, seems oblivious to the danger his people are in, and the majority of the monks are unsure of what role the Barlows are to take in bringing about Aion’s return. Hadyn and Ewan discover that their younger brothers, Garrett and Gabe, have been called to Karac Tor to be champions as well, and Hadyn declares that they will all stay and fight for Aion.