The X-Men are ambushed by Madelyne Pryor and her Sisterhood on Utopia. Madelyne is seeking a new body to house her consciousness, specifically that of Jean Grey.
Scott is psychically tortured by being in the presence of all the X-Men who died in his care, such as Jean, Maddie and Thunderbird. Emma is able to break him out of his prison illusion.
Madelyne infiltrated to steal the lock of Jean’s hair that Wolverine kept. Mission accomplished, they retreat.