Uncanny X-Men (1981) 359-A

"Power Play"

Things are not as they seem as Agent Gyrich shows up at Dr Agee's lab to see the first true test of the mutant solution. But something goes wrong as Agee's assistant turns on him and nearly kills him before he can perform his experiment but she is not who she appears to be as she is really Mystique. Mystique tries to convince Rogue not to go ahead with the transformation but Rogue does not listen to her and absorbs part of Mystique before returning to the lab to confront Agee. In the end, Rogue keeps her mutant powers and returns home to the mansion to ask for forgiveness from Logan.