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How Sir Tristram smote down Sir Agravaine and Sir Gaheris,.
and how Sir Dinadan was sent for by La Beale Isoud.
SO when they had overtaken Sir Tristram, Sir Agravaine bade him: Turn, traitor knight.

That is evil said, said Sir Tristram; and therewith he pulled out his sword, and smote Sir Agravaine such a buffet upon the helm that he tumbled down off his horse in a swoon, and he had a grievous wound.

And then he turned to Gaheris, and Sir Tristram smote his sword and his helm together with such a might that Gaheris fell out of his saddle: and so Sir Tristram rode unto Joyous Gard, and there he alighted and unarmed him.

So Sir Tristram told La Beale Isoud of all his adventure, as ye have heard to-fore.