King John's realm has existed peacefully for generations, but now the kingdom is disintegrating. The malign rotten blackness of the Darkwood is encroaching; demons are massing, hunting in packs. King John is out of money, out of men, out of hope. Prince Rupert, the younger son—not so much expendable as surplus to requirements—had been sent out on a Quest. When he returns, much to everyone's surprise, he has not just the princess but the dragon too...

A second son, a tired dragon, a unicorn without a horn and a princess with a wicked left hook: an unlikely company to face a Demon Prince—but face him they must, when the Blue Moon rises...