Children of the Vault

The Children of the Vault first appear in the X-Men arc "Supernovas," as super-powered beings who aim to exterminate both mutants and baseline humans, in order to claim Earth for themselves. While pursuing Sabretooth, two of the Children, Sangre and Serafina, use a "singularity generator" to destroy a town in Nogales, Mexico, framing the X-Men for the disaster. Two others, Aguja and Fuego ambush Sabretooth, who escapes and seeks help from the X-Men.[1] All four Children of the Vault next kill all of the members of the S.H.I.E.L.D. facility where Northstar has been held captive and take him, and later Aurora, in order to kill Sabretooth.[2] Serafina doctors images of the X-Men into the security footage, further discrediting the team. They also enhance the powers of the twins, Aurora and NorthStar, so that they now produce a powerful heat blast when touching.

After sending an enhanced Northstar and Aurora to kill Sabretooth and the X-Men, Serafina watches from a distance with another one of the Children, Perro. The surprise attack is initially successful, causing the apparent death of Iceman and severe injuries to many of the X-Men.[2] Luckily, Aurora has defeated thanks to Mystique's manipulation and Iceman's surprise (though incomplete) reformation, and Northstar is defeated by the combined efforts of Rogue and Cable.

Following the fight, Sabretooth informs Cable that their enemies are known as "The Children of the Vault." They are neither humans nor mutants, but a new species, evolutionarily distinct from either branch, created by a scientist and then cycled through normal evolutionary processes over the course of 6,000 years inside a time-accelerated cargo ship off the coast of Peru. Their cargo ship, the Conquistador, was designed to stay sealed until the planet was empty for the Children to take over. However, the energy discharge from the Decimation caused their vault to open early. Sabretooth also reveals that he was hired by one of the scientists to kill everyone involved in their creation.

Meanwhile, Serafina uses her cloaking abilities to infiltrate the mansion directly. She is invisible to telepaths, and Wolverine is only mildly aware that something is amiss. She easily makes her way to the injured Lady Mastermind in the infirmary and hijacks her abilities in order to trap Cannonball in an illusion. Wolverine manages to free Cannonball; however, Serafina subdues both mutants.

Serafina then rejoins her team, en route to New York. Rogue and her team, now including Lady Mastermind, Sabretooth, and Omega Sentinel, track and board the Children's ship. However, in the ensuing fight, the X-Men are overwhelmed, with Iceman essentially vaporized by Fuego, as the Conquistador hovers over the Xavier Institute, ready to destroy all the mutants within.

The X-Men fight back, though, destroying the weapons that would have destroyed the school, and killing several of the Children of the Vault, including Sangre, Aguja, and Fuego. With his last breath, Sangre tries to crash the Conquistador into the school, but it is stopped at the last minute by Cannonball and the ONE Sentinels. Many of the Children of the Vault (including Perro) manage to escape the battle alive, leaving behind animal carcasses altered to resemble them. The survivors, led by the mysterious Cadena, are revealed to have escaped to Ecuador, to the abandoned Sentinel facility once used by Cassandra Nova.[3]

The X-Men continue to use the captured Conquistador as a flying base of operations for some time.

The X-Men next encounter the Children of the Vault in Mumbai. A rebellious young member of the Children, Luz, escapes from the group's new headquarters, the futuristic city "The Corridor" (also known as Quitado), and lands in Mumbai during what appears to be a magnetic storm. She immediately encounters the X-Men Rogue, Magneto, Loa, and Anole, who along with their teammate Indra, are visiting Indra's family nearby. Luz claims to be a local girl named Luisa. When "Luisa" demonstrates her ability to paint colors in the air via light manipulation, Rogue, suspecting her to be a mutant, offers her hospitality at Indra's family's home. The remaining Children, led by a woman named Corregidora, pursue Luz, whom they believe to be critical to something called "Angelfire." Eventually, a team of Children, including Serafina, Cadena, and Perro, attack Indra's family home.[4] The Children defeat the X-Men easily and only spare their lives when Luz offers to return with them. The Children take Luz, Rogue, and Magneto with them back to the Corridor, located, according to Cadena "in the void between dimensions." There, Magneto learns that the magnetic storms menacing Mumbai are a waste byproduct of the Corridor's power grid. Angelfire, Cadena explains, is a new, cleaner engine, to be powered by "the 30," a group of Children including Luz—and the captured Magneto. Cadena and her team prepare to initiate Angelfire. Meanwhile, Corregidora and Perro officiate over Rogue's public execution in the "Sensorium," a psychic link among all the Children. Angelfire fails spectacularly because Luz has traded places with Indra's human fiancée, Vaipala. The Corridor crashes into Mumbai.[5] Rogue and Magneto escape from Quitado, with help from Luz, Anole, Indra, and Loa, and send Quitado back into the void between dimensions. Magneto predicts that the Children will be unable to find their way back to Earth.[6]

The Children of the Vault reappear during the Dawn of X era of X-Men comics. Serafina is rescued from captivity by the X-Men, during a raid on a base of the X-Men's enemy Orchis.[7] Later, Darwin, Synch, and X-23 are tasked with infiltrating the Children's base of operations in Ecuador. The Children of the Vault are also revealed to be the earliest members of the Post-Humans, better known as Homo Novissima, a race destined to depose both Homo sapiens and Homo superior as the dominant species on Earth.[8]

Once inside the Vault, the trio battle against the Children of the Vault with X-23 seemingly killing Serafina and Fuego and Synch killing Sangre and Perro by using Fuego's powers. In retaliation, Aguja unleashes a massive force field in an attempt to kill her foes, killing herself in the process.[9] The trio survives the attack and gathers intelligence for the next 100 years. They learn that at the heart of the Vault lies the city, a supercomputer that has become self-aware and eventually has expressed a desire to expand beyond the Vault, therefore creating in the process the Children of the Vault. After Serafina's capture and escape from Orchis and the rise of the nation of Krakoa, the city has created the third generation of Children so they can eventually take over Earth. Darwin, X-23, and Synch also learn that any Children who have died are resurrected by the City through cloning to further the evolution process. The City soon becomes interested in Darwin's adaptation power. The Children capture Darwin in order to learn more about his power. Consequently, the city is able to create a fourth generation of Children. The Children chase and are able to prevent Wolverine and Synch from escaping the Vault. Before dying, however, Synch manages to make telepathic contact with Professor Xavier and ensure everything he's learned about the Children of the Vault is passed onto his resurrected form.[10]

Later, Forge and Cyclops travel to Ecuador where the home of the posthuman Children of the Vault is located. Once they've reached the giant ruined Sentinel that contains the Vault, it's revealed that Forge had built a weapon pointing into the entrance of the Vault that will fire a little black hole which will collapse and take the Vault and the entire population inside it into the unknown if the door opens. However, just as Cyclops and Forge are debating the ethics of what will happen, the door of the Vault opened and the Children emerged from it. Forge uses his secret weapon Project Blackbox to subdue them. Because the Children of the Vault had become greatly evolved and extremely powerful, they quickly overwhelm the two mutants, with Forge losing a hand and Cyclops being killed by Fuego's flames after he absorbed and redirected Cyclops' optic blast. The Children of the Vault then travel to Krakoa which falls less than a day after the Vault opened. New York City is the next to fall, burned to the ground as the Avengers went down swinging with Ghost Rider killed by Fuego. The Children then kill the Fantastic Four. Sangre drowns Thing, Fuego kills Human Torch, Mister Fantastic is dead on the ground, and Serafina snaps Invisible Woman's neck. Earth's mystics lasted the longest and Latveria was the last stand of mankind. Clea and Doctor Doom are eventually killed nevertheless. Insatiable, the Children of the Vault journeyed to Asgard, where they killed everyone and ate a feast on top of Thor's dead body. However, it was soon revealed that all this was actually a simulated reality that contained not only the Children of the Vault but the entire Vault itself inside of a bio-dome. Forge then entered inside the bio-dome in order to rescue Darwin from the Vault.[11]

The Children of the Vault are eventually released from their prison due to Krakoa's downfall after Orchis’ brutal attack.