When Eric Albright, a luckless London slacker, and his pal Stuart Casey went through a battered red door under a railway bridge, the last thing they expected to find was another world. There lay the strange, dark realm of Levaal, whose tyrant lord Vous has ascended to godhood. The great wall which has divided the land has been brought down, setting loose a horde of demonic Tormentors. In their sky prisons, the dragons are stirring, set to defy their slumbering creator and steal humanity's world.

Shilen, a dragon cloaked in human form, has convinced Eric and Aziel, Vous's daughter, to help free the dragons from their sky-prison, or Earth will be destroyed. She promises great power, and safety for all Eric's favoured people, but Shilen has an ulterior motive, for the dragons wish to control humankind completely.

In Will Elliott's World's End, the third volume in The Pendulum Trilogy, Levaal is facing the final battle in this age-old war between worlds and forces more ancient than any human, god, or dragon.