The Realmskipper Saga : Book 1

This contemporary novel features the teenagers John, Nathan and Rika, who are stolen from earth to the realm of the Demies, where Rena Wolf is called out of hiding, back into the war he fought as a boy. The realm is torn by millennia of war, and our heroes find themselves becoming beacons of good on their quest for the ten talismans, to defeat the Dark sorcerer Goldem and his servant Grimlock.