How did Zhang Rishan die in the novel Old Nine Gates?

Zhang Rishan is not dead, because he belongs to the Zhang family and has a unicorn tattoo, so he can live forever.

Zhang Rishan is Zhang Qishan's adjutant. After Zhang Qishan left, he was in charge of Jiumenhui, serving as the president of Jiumenhui and the boss of the company (the head of Jiumenzhang family). This young soldier, who was brought out from the Zhangjia family in the northeast, later became an adjutant beside him. He listened to the Buddha and thought that "everything the Buddha said was right".

Extended data:

Zhang Rishan and he are brothers of the same ancestry, but he is the pure blood of the Zhang family, and he has the same Kirin tattoo. In the Old Nine Gates, after he and Buddha Zhang came back from the underworld, the Buddha's body began to have various problems, but he was safe and sound. He may not have died in the last battle with the Japanese, but he has lived to this day.

Zhang Rishan is the most trusted person of Buddha. His skill is extraordinary, and he has defeated the enemy group many times with one enemy and one hundred. Do things neatly, burn down Qiu Dekao's lair and give a banquet to Jude Kao and Liang Zi. He became good friends with Seven Eight Lords, Wu Laogou and Xie. He once sent a dog to Wu Laogou, played mahjong with his wife, and helped solve serial murders. I used to have a bad relationship with Huo Sanniang and Chenpi.

Baidu Encyclopedia-Zhang Rishan