Frágiles Hilos del Poder, Los

"There was a time when there were four worlds, each pulsating with magical power and connected by a single city: London. After a desperate attempt to prevent the corruption and ruin of the four Londons, only three remained standing: Gray London, prosperous but barely able to remember its magical heritage; Red London, rich and powerful, ruled in recent times by the Maresh family; and White London, abandoned to brutality and decadence. Now the worlds are going to collide again, drawn to the edge of a dangerous precipice by the discoveries of three extraordinary magicians."--