Doctor Strange: The Oath #4 — The Oath: Chapter Four

Strange learns that he wasn't the only one taught by the Ancient One and battles a monster that has killed every other Sorcerer Supreme! A character dies! Who will it be?!? Outside the hidden hospice of the vigilante caretaker known as Night Nurse, Doctor Strange takes on a terrifying new villain in the strangest battle of the Sorcerer Supreme’s career!