From the back of the book:
Once David Hero was an ordinary man living in the real world. Now he is trapped in the Dreamlands, cut off from the waking world. David Hero's dreams and nightmares have become his only reality.
Led by the wickedly beautiful Queen Zura, the zombie armies of the dead are on the march. They will destroy the beautiful Dreamlands, making them a permanent, deadly nightmare.
Unaware of the marauding zombies, David Hero and his friend Eldin voyage through the clouds in a wondrous skyship. Their journey is interrupted by a pack of faceless night-gaunts, terrifying creatures, half-man and half-bat - and all evil!
David Hero is one of Zura's first targets. As a man of the waking world, he can withstand her terrible seductive power and shatter her shambling armies. David Here must the the first Dreamlands hero to die.