Mainspring

Mainspring springs onto the scene in Marvel's late-'90s Warlock series, a creation of the acclaimed Louise Simonson and artist Pascual Ferry that arrived right at the cusp of the modern era. With only a handful of appearances to their name, this is a character whose story burns bright and brief, sharing pages with the likes of Spider-Man and Warlock in a series that clearly wasn't afraid to populate its world with memorable faces. For collectors hunting the corners of Marvel's Modern Age, Mainspring is exactly the kind of discovery that makes digging through a longbox so rewarding.