A new Emperor has arisen . . . and the Empire is collapsing into chaos. Having escaped from the Golden City, Elaine, Johan, and their friends--including some strange allies with goals of their own--race desperately towards Ida, hiding place of the ancient Witch-King. Behind them, the armies of the new Emperor--a man permanently poised on the verge of madness--give chase, unleashing monsters and spells from the long-buried past on everyone who stands in their way. Ahead of them, the Witch-King waits, biding his time as he prepares for his ascension. As they endure terrible dangers--and figures from the past--Elaine and Johan come to realize that Elaine's knowledge of magic and the bond between them may be the only thing standing between the Witch-King and godhood. But if they cannot prepare a defense in time, the entire world will die when the Witch-King rises from his tomb . . . The fourth and final installment in the Bookworm series, Full Circle continues from the events in The Best Laid Plans , with Elaine and her friends heading for Ida to confront the Witch-King.