Kieron Gillen 
Once & Future #21 

What ancient and mythical danger awaits Bridgette, Duncan, and Rose as they seek Rose’s parents in the city of Bath?To complicate matters, an Arthurian knight pursues them with an offer for Rose and Duncan — join the Round Table or face death. If they survive the encounter, they’ll be pulled into the next phase of Bridgette’s plan finding the "lair of the greatest hunter the accord has ever seen."