The final book in the thrilling epic fantasy Ley trilogy, set in a sprawling city of light and magic fueled by a ley line network. In a world torn apart by the shattering of the magical ley lines that formerly powered all the cities and towns of the Baronies, there are few havens left for the survivors. The uncontrolled distortions released by the shattering have claimed the main cities of the Baronial Plains. And many of the Wielders who controlled the ley died in the apocalyptic cataclysm their manipulation of the ley created.   Wielder Kara Tremain and former Dog Allan Garrett, survivors of the city of Erenthrall's destruction, have seized control of the new Nexus created at the distant temple known as the Needle, the stronghold of the White Cloaks and their leader, Father Dalton.  With Father Dalton a prisoner, Kara intends to use the Needle's Nexus to heal the major distortions that threaten to shake their entire world apart. But while she and the remaining Wielders managed to stabilize Erenthrall, they have not been able to stop the auroral storms or the devastating earthquakes sweeping across the lands. Now they are hoping to find a means to heal the distortion at the city of  Tumbor, releasing the nodes captured inside.  If they succeed, the ley network should be able to stabilize itself. But the distortion over Tumbor is huge, ten times the size of the one over Erenthrall.  Kara will need the help of all of the Wielders at the Needle in order to generate enough power, including the rebel White Cloaks.  But can Kara trust them to help her, or will the White Cloaks betray her in order to free Father Dalton and regain control of the Needle, possibly destroying any chance of healing the ley network in the process?   Meanwhile, Allan journeys back to Erenthrall, hoping to form alliances with some of the survivors, only to discover that Erenthrall itself has sunk a thousand feet into the ground.  The vicious groups that plagued them on their last visit have banded together under a new leader--Devin, formerly Baron Aurek's second-in-command.  While discussing an alliance with the Temerite enclave, Devin's men attack, forcing Allan and the Temerites to flee back to the Needle, leaving Erenthrall in Devin's hands.   But the Needle is no safe haven.  Father Dalton's followers have begun to rebel, starting riots and creating unrest, all of it targeted at Kara and the Wielders.  The tensions escalate beyond control when Father Dalton declares he's had a vision--a vision in which the Needle is attacked from the north by dogs and from the south by snakes; a vision that ends with the quickening of the distortions called the Three Sisters to the north . . . and the annihilation of reality itself!