Sir Gawain and the Green Knight
what is the green knight doing when gawain arrives at the green chapel
the green chapel
the green chapel
When Gawain reaches the Green Chapel he finds the Green Knight at the chapel sharpening an axe. The Green Knight is, of course, Bertilak de Hautdesert. He is the lord of the castle and husband to the wife that Gawain has been hanging out with.
Oh, in case you missed it, the Green Knight is getting ready to behead Gawain as per their deal.