In some versions of Arthurian legend, Arthur is expected to return in Britain's darkest days. But, what if his return is the cause of the days being the darkest? That is the basic premise of the series Once and Future. Starting in 2019, Boom Studios began this ongoing series featuring writer Kieron Gillen and artist Dan Mora. In the first story arc in issues 1-6, a weakened Arthur is returned from the dead his main adversaries are a young man and his grandmother, a woman who has been hiding her history as a monster killer from him. In the second story arc in issues 7-12, Beowulf is pulled from the realm of stories and is recruited by Arthur to fight for his cause. Following his destruction, Grendel appears, soon followed by his mother. All three are defeated in the story, and the story's main hero is advised that there may be a dragon yet to come, but not for many years.