handle the art for its revival of The Shadow, but he left the project early on when he realized he could not produce the necessary minimum number of pages on time, along with his work on Swamp Thing. Michael Kaluta illustrated the series, but Wrightson did contribute much to the third issue in both pencils and inks, as well as inking the splash page of issue #4. Warren and The Studio In January 1974, Wrightson left DC to work at Warren Publishing, for whose black-and-white horror-comics magazines he produced a series of original work as well as short story adaptations. As with BadTime Stories, Wrightson experimented with different media in these black-and-white tales: Edgar Allan Poe's "The Black Cat" featured intricate pen-and-ink work which stood in direct contrast with his brush-dominated Swamp Thing panels. "Jenifer", scripted by Bruce Jones, was atmospherically rendered with gray markers. "The Pepper Lake Monster" was a synthesis of brush and pen-and-ink, whereas H.P. Lovecraft's "Cool Air" was a foray into duotone paper. "Nightfall" was an exercise in ink wash. "Clarice" was also drawn in pen, brush, and ink, and with ink wash. In 1975, Wrightson joined with fellow artists Jeffrey Catherine Jones, Michael Kaluta, and Barry Windsor-Smith to form The Studio, a shared loft in Manhattan where the group would pursue creative products outside the constraints of comic book commercialism. Though he continued to produce sequential art, Wrightson at this time began producing artwork for numerous posters, prints, calendars, and even a highly detailed coloring book, The Monsters. He also drew sporadic comics stories and single illustrations for National Lampoon magazine from 1973 to 1983. Wrightson spent seven years drawing approximately 50 detailed pen-and-ink illustrations to accompany an edition of Mary Shelley's novel Frankenstein. The illustrations themselves are not based upon the Boris Karloff or Christopher Lee films, but on the actual book's descriptions of characters and objects. Wrightson also used a period style, saying "I wanted the book to look like an antique; to have the feeling of woodcuts or steel engravings, something of that era" and basing the feel on artists like Franklin Booth, J.C. Coll and Edwin Austin Abbey. Frankenstein was an unpaid project, Wrightson describing it as a "labor of love" he worked on over seven years. Later career The "Captain Sternn" segment of the animated film Heavy Metal is based on a character created by Wrightson (first appearing in the