The Orb of Zemelchus

Twins Peter and Josh had no idea they were being watched. They also had no idea that their strange uncle belonged to another world, a world of vampires, strange beasts and powerful enchantments. They were, so they thought, perfectly ordinary boys, but once connected to Errin they became aware of their own powers and their destiny. Nothing was straightforward any more. The distinction between good and evil was not always as clear as either of them would have imagined. Vampires were not necessarily bad, and the most appealing creatures were not necessarily good, but the decisions they made were critical: the fate of an entire world depended on them.