The Green Knight lifts his sword high, preparing to end the Duchess' life with one fell stroke, seemingly oblivious to Baron Roesone's challenge and wild charge. At the very last moment, as his sword beings to fall and the Baron is nearly upon him, his suddenly spins, nay flows, to the side, his sword deftly slipping into the armpit of the Baron's exposed right arm. As the Baron rushes past, the sword flashes again, this time cutting deep inside Arvuor's knee.
The Baron stumbles, almost falls, but somehow manages to keep on his feet...he turns to meet the Knight's onslaught with his blade in his left, his right hand hanging useless by his side. Then the Knight is upon him again, all his foolish plays gone, replaced with murderous intent. The baron stumbles backwards, away from Marya, barely managing to keep the blade away from him neck and vitals - without his full battle armor he is in mortal peril!
Surely the Green Knight has gone mad the crowd murmurs...but the gathered nobles recognize it for what it is; the Baron's intervention has triggered his divine wrath, and he no longer recognizes friend from foeman...