He was reeling, dripping mud, with water pouring from the breath holes in his dinted helm, but he was standing. He sucked down air.
His battered shield still clung to his left arm, but his scabbard was empty and his sword was gone. There was blood inside his helm as well as water. When he tried to shift his weight, his ankle sent a lance of pain right up his leg. Both horses had struggled back to their feet, he saw. He turned his head, squinting one-eyed through a veil of blood, searching for his foe. Gone, he thought, he's drowned, or Thunder crushed his skull in.
Ser Lucas burst up out of the water right in front of him, sword in hand. He struck Dunk's neck a savage blow, and only the thickness of his gorget kept his head upon his shoulders. He had no blade to answer with, only his shield. He gave ground, and the Longinch came after, screaming and slashing. Dunk's upraised arm took a numbing blow above the elbow. A cut to his hip made him grunt in pain. As he backed away, a rock turned beneath his foot, and he went down to one knee, chest-high in the water.
He got his shield up, but this time Ser Lucas struck so hard he split the thick oak right down the middle, and drove the remnants back into Dunk's face. His ears were ringing and his mouth was full of blood, but somewhere far away he heard Egg screaming. ""Get him, ser, get him, get him, he's right there! ""
Dunk dived forward. Ser Lucas had wrenched his sword free for another cut. Dunk slammed into him waist-high and knocked him off his feet.
The stream swallowed both of them again, but this time Dunk was ready. He kept one arm around the Longinch and forced him to the bottom. Bubbles came streaming out from behind Inchfield's battered, twisted visor, but still he fought. He found a rock at the bottom of the stream and began hammering at Dunk's head and hands. Dunk fumbled at his swordbelt. Have I lost the dagger too? he wondered. No, there it was. His hand closed around the hilt and he wrenched it free, and drove it slowly through the churning water, through the iron rings and boiled leather beneath the arm of Lucas the Longinch, turning it as he pushed.
Ser Lucas jerked and twisted, and the strength left him. Dunk shoved away and floated. His chest was on fire. A fish flashed past his face, long and white and slender. What's that? he wondered. What's that? What's that?
He woke in the wrong castle.
When his eyes opened, he did not know where he was. It was blessedly cool.