students that intercepts the Hulk. Mercury helps in keeping Hulk pinned down in the first attack but is knocked away. When X-23 blinds him she joins in taking him down alongside Surge, Beast and X-23 but they are all knocked away when Hulk's eyes grow back. Mercury gets back up and attacks him from behind but Hulk grabs her and squishes her against the ground. Later while the rest of the X-Men are still defeated from the Hulk's attack, Mercury tries one more time to defeat the rampaging green goliath. During the course of the battle, the Hulk was shown the recent graveyards of all of the deceased mutants that died after M-Day. Mercury then describes in detail the deaths of Laurie Collins and Brian Cruz, causing the Hulk to understand his self-righteous tantrum is wrongly directed towards Xavier's affiliation with the Illuminati. Seeing these graveyards reminds the Hulk of his fallen companions on Sakaar, and with that understanding, he leaves Xavier unharmed. Children of X-Men Cessily still maintains her disapproval and distrust of Emma Frost after overhearing her conversation with X-23 during the "Mercury Falling" arc. She also feels that Emma has carelessly "lost" track of Wither and constantly reminds her of the fact that Kevin is no longer in the school or under her surveillance. Mercury has also been deeply affected by the events of Decimation, as depicted in the "Endangered Species" miniseries. She is distraught by the death of a teenage civilian mutant and is one of the students at the institute trying to determine the youngest mutant, as she believes that the youngest mutant always tends to be killed. Mercury later comforts X-23 after she ran off and wrecked the woman's restroom in rage due to Surge kissing Hellion, and is later seen hanging out with her and Dust. Messiah Complex Mercury is one of the New X-Men led by Surge that launch a strike against the Purifiers to incapacitate them and rescue the mutant baby. After Hellion is critically wounded by Lady Deathstrike, Pixie panics and blindly teleports the entire team out of the Purifiers' base, spreading them out between Washington and New York. It does not appear that Cessily suffered any lasting injuries as a result. Iceman arrives with the X-Jet to bring them back to the mansion. She helps to stabilize Hellion in the X-Jet on the way back to the mansion. Later,