Hounds of Vengeance.
With the port of Antwerp destroyed, the 501st is assigned to a reconnaissance mission to scout another port to serve as the bridgehead for Operation Southwind. During the mission Barkhorn and Erika are attacked by a Neuroi with high maneuver capabilities and Erika is shot down. Unable to keep fighting, Barkhorn is forced to retreat without knowing of Erika's fate. Unaware that Erika survived, Barkhorn divides her time between staying at the sauna and exercising herself without eating at all...