When a group of Nationalists use an ancient artifact to bring a villain from Arthurian myth back from the dead to gain power, ex-monster hunter Bridgette McGuire escapes her retirement home and pulls her unsuspecting grandson Duncan, a museum curator, into a world of magic and mysticism to defeat a legendary threat.
The veil between the Otherworld and the human world is thin, and as the story changes around Duncan and Gran, each foe becomes harder to defeat...and predict. They may be holding the line, but enemies both new and old are closing in fast, and even Gran and Duncan may not be prepared for what's next!