When a group of Nationalists use an ancient artifact to bring a villain from Arthurian myth back from the dead to gain power, ex-monster hunter Bridgette McGuire escapes her retirement home and pulls her unsuspecting grandson Duncan, a museum curator, into a world of magic and mysticism to defeat a legendary threat. Bestselling writer Kieron Gillen (The Wicked + The Divine, Star Wars) and Russ Manning Award-winning artist Dan Mora (Buffy The Vampire Slayer, Klaus) explore the mysteries of the past, the complicated truths of our history and the power of family to save the day…especially if that family has secret bunkers of ancient weapons and decades of experience hunting the greatest monsters in Britain’s history!

The McGuire family has held back supernatural threats for generations, but this time they messed up. As an ancient evil arises from the grave, Bridgette and Duncan find themselves up against forces bigger than they could have expected, and faces new and old are about to complicate things further

Gran and Duncan are in a race against time to get back to the Otherworld. The sword in the stone awaits, and he who pulls the sword from the stone becomes King.

With Gran’s life hanging in the balance, Duncan comes face to face with another knight in search of the Grail, and only one will emerge victorious...

With the fate of the world in the balance, Duncan must finally accept his role in the larger story. But has Gran trained him well enough to defeat the undead King of the Britons by himself?

Although Bridgette and Duncan were able to escape the Otherworld, their adventure is only just beginning! As the chaos of Arthur's return reaches London, an artifact at the British Museum is stolen. But is it Arthur who's interested in the relic... or someone, or something, new?

When a strange newcomer arrives at the dark court of Camelot, his presence disrupts The Otherworld. Sometimes winning the battle risks losing the war... as Duncan and Bridgette will soon find out.

With Merlin—and the magic he wields—back at his side, King Arthur is stronger than ever. Brigette and Duncan continue to fight against Camelot's dark forces, but when Merlin calls to life another story entirely, will the two heroes save the day? Or will they find themselves becoming the villains they're sworn to defeat.

Revenge is the greatest motivator and Gran and Duncan have awakened the ire of the mother of all monsters...

Bad news comes in threes and so do the creatures haunting England—and if they're going to survive this legendary fight, Gran and Duncan will need to revive a connection with an old enemy. After all, you're always better with the devil you know... right?

The veil between the Otherworld and the human world is thin, and as the story changes around Duncan and Gran, each foe becomes harder to defeat... and predict. They may be holding the line, but enemies both new and old are closing in fast, and even Gran and Duncan may not be prepared for what's next!

Beowulf's arrival was an unexpected one and now that the smoke has cleared, Gran and Duncan are beginning to wonder what other surprises lurk around the corner. Meanwhile in the Otherworld, Merlin is up to his old tricks and crossing over with another story was just the beginning of his plan...

When an ancient helmet at the British Museum is taken, Bridgette and Duncan are confronted by another hero of yore, one who will lead them to facing off against their most formidable challenge yet...a beast and his mother. Although Bridgette and Duncan stopped Arthur from retrieving the Grail and separated him from the legendary scabbard of Excalibur, the undead King of the Britons still has his sights on returning to our world and returning to power. By inadvertently changing the story of the famous King, Duncan and Gran have thrown the Otherworld into shambles, allowing for new legends and characters to make their appearance - and bring a world of trouble along with them. New York Times bestselling writer Kieron Gillen (The Wicked + The Divine, Star Wars) and Russ Manning Award-winning artist Dan Mora (Buffy The Vampire Slayer, Klaus) deliver the next chapter of the critically-acclaimed series that took the world of comics by storm! Collects Once & Future #7-12.

The next chapter in the critically acclaimed and Eisner Award nominated series as Bridgette, Duncan, and Rose must find a way to stay one step ahead of Merlin and keep things secret, but it’s a modern era and secrets never stay hidden very long… THE WORST OF BOTH WORLDS. Although the monsters of Beowulf may have been defeated, the convergence of stories means the tether between our world and the Otherworld grows dangerously thin. Determined to stay one step ahead of Arthur and Merlin’s plans, Bridgette and Duncan start with what they know, tracking down the last connections Nimue had: the Nationalists she used to resurrect Arthur, and Lancelot. But finding the legendary knight may not be enough, Merlin has found his last piece of the puzzle and it goes all the way up to the highest reaches of British government. In order to prevent more chaos, Bridgette, Duncan, and Rose must fight harder than ever to keep things secret, but it’s a modern era and secrets never stay hidden very long… New York Times bestselling writer Kieron Gillen, joins Russ Manning Award winning artist Dan Mora, and colorist Tamra Bonvillain present the next chapter in the critically acclaimed and Eisner Award nominated series.. Collects Once & Future #13-18.