Over the years, Charles makes a name for himself as geneticist and psychologist, apparently renowned enough that the Greys were referred to him when no other expert could help their catatonic daughter, Jean. Xavier trains her in the use of her telekinesis, while inhibiting her telepathic abilities until she matures. Around this time, he also starts working with fellow mutation expert, Karl Lykos, as well as Moira MacTaggert again, who built a mutant research station on Muir Island. Apparently, Charles had gotten over Moira in his travels to the Greek island of Kirinos. Xavier discusses his candidates for recruitment to his personal strike force, the X-Men, with Moira, including those he passes over, which are Kurt Wagner, Piotr Rasputin, Pietro and Wanda Maximoff, and Ororo Munroe. Xavier also trains Tessa in order to spy on Sebastian Shaw.