The Flash #20 was published by DC Comics on December 1, 1988, as part of a series that began in 1987. Barbara Randall Kesel and Bill Messner-Loebs write, and art comes from Greg LaRocque, Larry Mahlstedt and Michele Wolfman. This 36-page issue features Wally West, Pied Piper, Mary West, Mason Trollbridge and Mister Gilchrist, among 7 characters cataloged on VerseDB.