Emma on the astral plane, Scott was talking to Emma in the physical world, trying to convince her to return Cassandra's mind to Stuff. Emma's only response was to say "Go to hell," though it is unclear whether she was talking to Scott or Cassandra. It was never revealed if Cassandra's possession of Hisako was successful or if Emma returned her mind to its prison. Mutant Extinction Agenda After Jean Grey returns to life and sets about establishing an official mutant 'nation', she is secretly observed by Cassandra Nova, who had in fact escaped from the X-Men's clutches by using her psychic powers to hop from host to host, and at some point she took possession of the Ambassador from the United Kingdom in the United Nations. When Jean confronted the United Nations, she unbeknownst disrupted Cassandra's finely-laid plans, and now Cassandra vows to tear down Jean's efforts. She also created a microscopic sentinel tech which she then used to control governments by implanting it in the brains of several humans. These infected humans become mutant-hating machines, with no self control and ready to take down any mutant who so much as looks at them and while the Red team of X-Men, still oblivious about the threat of Cassandra Nova, were able to find a way to turn off this sentinel tech, the thought of finding every single infected person is overwhelming. On the other side of the globe, Nova-controlled governments are threatening death to all mutants. The Polish army nearly succeeds, but the Red team steps in before things get bloody thanks to Jean's telepathic powers and Namor's intervention. Cassandra Nova also had recruited an unwilling Forge to her cause and reveals that her mutant hatred is motivated by her near-death at the hands of her brother, Charles Xavier (that she had actually tried to kill him first doesn't register with her). She later reveals herself to Jean Grey while the latter was using Searebro (the undersea Cerebro unit) to watch as the waves of anti-mutant hatred wash over the world and simultaneously sends also an unwilling Jamie Carlson aka Teen Abomination to smash Atlantis. With the help from Avengers and the rest of Atlanteans, Jean Grey's X-Men and their allies use mass-produced Magneto's helmets to save Cassandra's brainwashed victims. During the confrontation with Cassandra Nova, Nightcrawler teleports Gabby behind Cassandra's head to de-power her, allowing Jean to succeed