The Green Knight is a character from a 14th-century poem, ‘Sir Gawayne and the Green Knight’. (I really must get my keyboard fixed.) He (it?) will of course be joining Arthurian Legends.
We tried to be brilliantly clever, coordinating this with the release of the new movie ‘The Green Knight’... but alas we’ve been thwarted by world events/Hollywood schedules. While it may seem odd to buff Festive Traditions in August, the poem is set at Christmas, so what else could we do*? In the poem The Green Knight rides into King Arthur's hall and challenges the Knights to cut off his head. If they manage this then they keep the Green Knight’s axe, but if not they must accept a strike back one year later. Hilarity ensues. (Or not. What am I, a Middle English scholar?) *Please don’t answer this.