Some time after the Immortal Man's sacrifice during "Crisis on Infinite Earths", an adolescent girl named Steffi Jones suddenly gains the Immortal Man's memories, as well as the power of flight. She helps the Flash against Vandal Savage and the speedster hero asks if she is the Immortal Man ina new body. Steffi says she doesn't think so; while she has Immortal Man's memories and instincts (but not his amulet), she believes she is a new person and refers to herself as "The Immortal One". No mention is made of Stefi's parents or if she was a child found and adopted, so it is also unclear if she was already alive before the Crisis, in which case she could not be Immortal Man. After Savage's plan is defeated, Steffi confronts him and the two are caught in an explosion that seemingly destroys them. Savage later turns up alive and continues battling Earth's superheroes. Steffi Jones is never seen again, making it unclear if she died in the blast or was reborn in a new body afterward or was indeed the original Immortal Man after all.