Action Comics #366

SUBSTITUTE SUPERMAN! / STANHOPE - OFF LIMITS! Superman is cured of Virus X because the Bizarros exposed him to White Kryptonite, which destroyed the plant-like bacterial infection; However, when he returns to Earth he learns that no one is still in mourning, because his Justice League friends have been masquerading as him. Two women with super-scientific weapons construct a dome over Stanhope College that will set off a bomb if Supergirl uses her powers against it, keeping her out of the way while they search for one particular student.