The Warlock's Gambit - The Arthur Paladin Chronicles, #2

Arthur and Morgan must free the Manse from Shadow before it dies, taking them and the secrets of Arthur's past out with it. Arthur Paladin's parents were murdered by the forces of Entropy. Now Arthur, as the next Multiversal Paladin, must fight those forces and bring the light and hope of Aetheria wherever darkness has taken hold. At least, that's what Arthur and Morgan Apple, his first and only official companion, have been told.
The first step in their new mission isn't an easy one. They must destroy the shades infesting the Manse and the warlock controlling them. With the task half done, Arthur and Morgan begin to realize that what they've been told isn't the whole story. Light and dark, good and evil, may not be as clear cut as they thought. And Arthur may be destined to be something more than just another Multiversal Paladin.
Unfortunately, the only one with answers is the warlock. And he's been trying to kill them.