It has been nearly a year since Steve, Sandra, Shirley, Ranji and Kevin made their second journey back in time to aid the wizard Maroth in his epic struggle against the sinister and malevolent Drascobal.
But now a new evil is on the rise. In the underwater land of Zarakum, the gate to Hades has been breached, freeing the evil wizard Tandris. Tandris hopes to steal the magical secrets of all the wizards in Britain by using the wizardstone, a stone from the lost empire of Atlantis that holds incalculable power.
Will the friends be able to help Maroth, Merric, Garedd, Devron and the others? Or will Tandris succeed in bringing all powerful evil to the world?