The series concerned a group of different alien races that had been taken prisoner and brought to the Negation universe.
In October 2004, writer Tony Bedard was quoted laying out a design for the future of the characters in an interview.
All stories were written by Tony Bedard and expand the universe created in the main Negation series.
It was revealed in the series that there were five Sigil-Bearers taken by the Negation, though apparently only four survived the "Extinction Wave", a weapon which rendered the prison planet into a burnt husk.
The survivors are as follows: The fifth Sigil-bearer, a blue-skinned, blue-haired individual with the Sigil marked on the right side of his neck, was shown in the Negation Prequel, though his name and his abilities were never mentioned.