[3] Their first work for the company was the three-page short story "On the Day of His Return" published in Time Warp #3 (Feb.–March 1980) and drawn by Steve Ditko.
[4][5] In 1983, Cohn and Mishkin created Amethyst, Princess of Gemworld with artist Ernie Colón.
[8] DC gave both series a promotional push by featuring them in free, 16-page insert previews.
[9][10] Cohn and artist Ron Randall co-created the "Barren Earth" feature as a backup in The Warlord #63 (Nov. 1982) and it was spun off into a four–issue limited series in 1985.
[2] Cohn was on the faculty of the Information Technology High School in Long Island City as a U.S. History and Government teacher.