Dongtuna 董荼那

In Chapter 87 of the Romance, Meng Huo, King of the Man, hears that Zhuge Liang has defeated Yong Kai and the others by his wits, and gathers the marshals of the three caves: the first cave is Jinhuan Sanjie, the second Dongtuna and the third Ahuinan. Meng Huo has them advance along three routes and promises to make whoever wins a cave lord, and Dongtuna takes the left-hand route and advances at the head of 50,000 Man soldiers. Romance, Ch. 87 §31–32

Zhuge Liang assigns the three routes to Wang Ping, Ma Zhong, Zhang Ni and Zhang Yi, and does not use Zhao Yun and Wei Yan, saying they do not know the terrain. Zhao Yun and Wei Yan go out to reconnoiter in person and learn from captured Man soldiers that the two roads beside Jinhuan Sanjie's camp lead to the rear of the camps of Dongtuna and Ahuinan. After Zhao Yun cuts down Jinhuan Sanjie, Wei Yan goes by the eastern road to attack Dongtuna's camp. Dongtuna comes out to meet him, but Wang Ping's troops have already reached the front gate of the camp, and attacked from front and rear, he is badly defeated and flees. Romance, Ch. 87 §33–40

The generals report that Dongtuna and Ahuinan both abandoned their horses and fled over the ridge, but a little later Zhang Ni brings in Dongtuna under escort. Zhuge Liang had learned the positions of their camps from Lü Kai's maps and, foreseeing that the two would flee along the mountain paths, had set Zhang Ni and Zhang Yi in ambush and had Guan Suo lend support. Zhuge Liang unties the two men, gives them wine, food and clothing, and tells them to go back to their caves and no longer abet evil, and the two weep, bow and depart. Romance, Ch. 87 §41–44

In Chapter 88, when the released Meng Huo sends men to summon them, Dongtuna and Ahuinan, who have returned to their caves, are afraid and have no choice but to come with their cave troops. Zhuge Liang instructs Ma Dai to cross the Lu River, cut off the grain of the Man caves, and then join the two cave lords and have them act as an inside force. When Ma Dai takes the Jiashan Gorge and kills Meng Huo's lieutenant Mangyachang, Dongtuna volunteers, receives 3,000 troops and goes to the Jiashan Gorge. Romance, Ch. 88 §2–3 · 8 · 11 · 14–16

Told by a soldier who recognizes Dongtuna, Ma Dai rebukes him for turning traitor again after the Chancellor had spared his life. Dongtuna, his face full of shame, withdraws without even fighting, and tells Meng Huo that Ma Dai is a hero who could not be withstood. Meng Huo, saying that Dongtuna has deliberately withdrawn without fighting because he received Zhuge Liang's favor, orders him beheaded, but when the chieftains plead again and again, he has him given a hundred blows of the great cudgel and sends him back. Romance, Ch. 88 §16–18

The chieftains tell Dongtuna that they rebelled only because they were forced to by Meng Huo's power, and that all of them owe their lives to Zhuge Liang, and they propose killing Meng Huo and surrendering to Zhuge Liang. Gripping a steel blade, Dongtuna leads a hundred or so men and rushes to the main camp of the dead-drunk Meng Huo, and tells the two generals below the tent that they too owe their lives to Chancellor Zhuge and ought to repay him. The two generals say they will capture Meng Huo and present him to the Chancellor, and together they go into the tent, bind Meng Huo and take him under escort to the north bank of the Lu River. Zhuge Liang richly rewards Dongtuna, who reports the affair in detail, and sends him back at the head of the chieftains. This is the "binding the barbarian king again" in the title of Chapter 88. Romance, Ch. 88 §18–21

Zhuge Liang releases Meng Huo once more. Back in his own camp, Meng Huo hides swordsmen and axemen below his tent, sends trusted men to the camps of Dongtuna and Ahuinan on the pretext that an envoy from Zhuge Liang has arrived, lures the two men below the tent of the main camp, kills them both and throws their bodies into a mountain stream. Romance, Ch. 88 §22–25