In the Age of Apocalypse, Sinister uses the advantage of a tempest to check on his secret pet project, the creation of an infinitely powerful mutant. He examines the young boy and is satisfied that he is developing well and names him Nathan Grey. As a transmission from Sinister’s colleague, the Dark Beast, is coming in, Nate uses this opportunity to slip away and examine the building. In an old classroom, he notices psionic echoes of the past, among them the life of his “father,” Scott Summers. Noticing him missing, Sinister angrily looks for the boy. After he finds him, he tries to impress on him the horror of life outside, as he shows the boy transmissions of humans being taken to the genetic pens. Nate transports their astral forms to that place and actually starts to reach out towards one of the Infinites, intending to stop him from hurting people. Horrified, Sinister uses an established failsafe to transport their astral forms back. As Nate is about to throw a tantrum, Sinister diverts him by creating for him a teddy bear. Sinister puts the child back into his nutrient bath and comes to the realization that the child is going to be too powerful and that he has to create some sort of failsafe to keep the boy in check.