When the physical forces of multiple worlds come into conflict, magic appears. Certain humans can control this energy to fight back the threat. In Ravenslake, home to a small university, a new generation of mages has been called forth as an ancient enemy of Earth returns.

Alex Adams now has at least some control over her magical powers, though magic lessons with Merlin and Morgana are still on the agenda. The more she learns about the war she's now a part of, the less confident she grows. She still has feelings for Arthur Pendred despite his status as the reincarnation of the warrior mage who inspired the tale of King Arthur. Complicating things are his girlfriend Jenny and his best friend Lance. Alex knows that story never ends well. To protect Arthur, Merlin and Morgana are ready to destroy the threat even if it costs Alex her friends. With the Sídhe still poised to attack, it is only a matter of time before an ancient betrayal destroys the fragile balance.