They were created by the addition of a third strand of chromosome possessing a X-Gene on it in human bodies, creating triploids functional mutants. Some of them seem to have received mechanical enhancements in addition. The origin of the X-Genes as for those of the human bases are unknown.
They had taken down a first Annex Squad, and kept in the fight with the second one was sent later. All over the planet, the New Mutants followed, tracked and confronted that second Annex Squad, fighting in a Secret War.
At some point, they followed the scouts in Tian, an hidden city in China, where the invaders looked for a power-source to charge their Ghost Box. As the city was powered by the Chinese mutant community living there, dead since the M-Day, they couldn't find it, and so Agent X-13 split from the group with the Box. He was followed by one of the artificial mutants, one with flight powers, whose was killed by X-13 in San Francisco and whose corpse was found by the X-Men, who started to inquiry on the subject, using the "Triploid Mutant"'s (as was named the dead mutant) notebook relating his track of the invaders.
Forge, thinking the X-Men were joining his fight, show to them the remains of his New Mutants, and after discussions, tried to force them to go though the Ghost Box Forge had found in destroying the first team.
Forge and his New Mutants, including the Chameleon, were seemingly killed. However Forge later somehow resurfaced.
Transportation: Ghost Box
- 3 New Mutants (Forge) (Earth-616) Members
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