The Once and Future King Book 4, Chapter 2
The Orkney brothers all meet together. Gawaine, Gaheris and Gareth try to avoid discussing Lancelot and Guenever, but Agravaine and Mordred press the issue. Gawaine especially views this as indecent. Mordred pushes the idea that Arthur seduced their mother and defeated their father, and is only kind to them because he fears them. The others protest, and try to keep them from going to Arthur and telling him the truth, once and for all. They fight, and Mordred nearly stabs Gawaine as Gawaine tries to attack Agravaine, while Gaheris and Gareth hold them back. Then suddenly, the King enters the room.