The Master of the Mystic Arts crosses into the Quadriverse, but little does he realize that unknown agents have set the Cosmic Wheel of Change in motion. Chaos is unleashed as the universe goes mad! Only with the return of the Ancient One can Doctor Strange hope to restore order to creation, but he'll have to conquer the cosmic might of the In-Betweener to do it! Writer Roger Stern has even more frightening horrors to unveil, as an elder god marshals Nightmare, D'Spayre and the Dream Weaver to twist reality - and rend Strange and Clea's souls with inconceivable fears! Also featuring mystic encounters with Nighthawk, Namor, the Avengers and the Black Knight - and the return of a figure from one of Doctor Strange's first adventures! Collecting DOCTOR STRANGE (1974) #23-37 and CHAMBER OF CHILLS #3-4.