Abraxas, sometimes called the Dark Man, is a fictional cosmic entity in the Marvel Universe. He first appeared in Fantastic Four 2001
Abraxas emerged from within the heart of Eternity after Galactus apparently died in the Galactus: the Devourer limited series (1999–2000). Galactus was revealed as necessary to keep Abraxas at bay.
Abraxas is a cosmic entity who seeks to destroy not only the main Marvel Comics universe, known as Earth-616, but all parallel realities as well, by using a weapon of universal destructive power called the Ultimate Nullifier.
The location of the Ultimate Nullifier is unknown except to the Human Torch, a member of the super hero team the Fantastic Four. With the intention of attracting the attention of the Fantastic Four, Abraxas kills another universe's Galactus, and sends his skull to Earth-616, also using the skull as a homing beacon. This causes a disturbance in the space-time continuum, allowing people from other universes to come through the gap left by the head, including another Nova. When the Fantastic Four seeks the counsel of the Watcher, they find that he has forgotten who he was, and then he becomes coma. Eternity informs Mister Fantastic of the Fantastic Four that this was caused by Abraxas.
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