
While all this is going on Glacian is steadily deteriorating, his memory slipping away, and Yawgmoth is seducing Rebbec. Quickly rumors are going around that Yawgmoth is just sending possible opponents down into the caves while raising up people loyal to him. Under his command the Caves of the Damned are turned into an infirmary, while some healthy Untouchables raised up into the city. Which in turn he uses to gain Glacian's seat on the Thran council and control over the city guard. Eventually he discovers that certain metals can block the spread of the disease, just in time to use that to defuse an uprising of the Untouchables. He leverages this into getting resources. He names it phthisis, and says it is already endemic to several other Thran city states. Yawgmoth quickly discovers that the disease is caused by exposure to powerstones. As the doctors' spells only make things worse, Glacian's wife Rebbec only sees one option and recalls Yawgmoth, the exiled leader of the eugenicists. One day one of these Untouchables, a man named Gix, crawls up into the city, stabs Glacian with a powerstone and infects him with the disease. But not everything is as lovely as it seems: underneath Halcyon lie the Caves of the Damned, where the undesirables are sent and where disease is rampant. It's at peace after a civil war that ousted a faction of eugenicists, and a bright new age seems to be dawning due to the artifact wonders created by a man named Glacian. Then we flashback to 9 years earlier, when the empire is at the pinnacle of its power. An alliance of several Thran city states, dwarves, elves, minotaurs and other races face of against Halcyon, the capitol of the Thran empire, led by Yawgmoth.

The book opens on the start of the Thran-Phyrexian war.
