Aliens: Advent/Terminus is a two-part comic book short story (the first part entitled "Advent" and the second part entitled "Terminus") that was first published by Dark Horse Comics in the anthology series Dark Horse Presents, Vol. 1 #42-43, from July-August 1990. Originally published in black and white, the story was written by Paul Guinan and Anina Bennett, illustrated and inked by Guinan, lettered by Willie Schubert and edited by Randy Stradley. The issues of Dark Horse Presents also featured Aliens cover art by Guinan.