If you think you can unlock the gates of Hell and just invite yourself in, you must be Dreaming! Get ready for the epic IDW/DC crossover, LOCKE & KEY / SANDMAN UNIVERSE: HELL & GONE, with this special primer issue reprinting key moments from the lore of both series, getting you all caught up on the tale to be told. First, in the LOCKE & KEY tale, "Open the Moon," meet Chamberlin Locke, patriarch of the Locke family, whose Moon Key began to unlock the events of this event series. Next, from "Sleep of the Just" in THE SANDMAN #1, journey to a shadowy mansion in Wych Cross, England, 1916, where a terrible ceremony aims to summon the avatar of Death itself... and reels in something far more unexpected! And familiarize yourself with the remarkable power of the Locke family's strange collection with "Guide to the Known Keys!" Then join IDW and DC Comics for LOCKE & KEY/SANDMAN UNIVERSE: HELL & GONE #1!