Prison Guard Wu

Biography & Historical Record

Prison Guard Wu (吴押狱, Ngô Áp Ngục) is a literary jailer in Luo Guanzhong’s novel, not a Sanguozhi officer. The stub that called him “the wife of a kind-hearted man” reversed the household: he is the Wu-surnamed turnkey; his wife is the woman who burns the book. He appears only in Chapter 78, after Cao Cao (曹操, Tào Tháo) has jailed Hua Tuo (华佗, Hoa Đà) for proposing to open the skull and draw out “wind-phlegm.” Jia Xu (贾诩, Giả Hủ) warns that such a physician should not be thrown away; Cao Cao answers that the offer is another Ji Ping (吉平, Cát Bình) assassination and orders torture.

In the cell a jailer surnamed Wu, called by everyone “Wu Yayu” (押狱, jail officer), brings wine and food every day. Hua Tuo, sure he will die, says his regret is that the Qingnang Book (青囊书, Thanh Nang thư) has not been transmitted. He writes a letter, sends Wu to Jincheng to collect the volume from Hua Tuo’s wife, checks it, and gives it to Wu so the jailer may leave the service and treat the sick. Wu hides the book at home. About ten days later Hua Tuo dies in prison. Wu buys a coffin, buries him, throws up the post, and goes home to study — and finds his wife feeding the manuscript to the fire. He snatches what he can; one or two leaves remain. She tells him that even if he became as subtle as Hua Tuo he would only die in a jail, so the book is useless. Wu sighs and stops. The narrator says the Qingnang Book therefore never reached the world; the scraps that survive are small methods for caponising fowl and pigs. A closing poem laments that after the man and the book both perished, later ages never saw the Qingnang again.

Official history records Hua Tuo’s imprisonment and death under Cao Cao, and a tradition that a medical work was lost, but it does not name a jailer Wu or stage the wife-and-bonfire scene. Treat Chapter 78 as the novel’s explanation of why Hua Tuo’s surgery and anaesthesia did not become a school. Prison Guard Wu is the hinge of that explanation: kindness in the cell, ambition to heal, and a household that refuses the gift.

Role in Romance of the Three Kingdoms

Chapter 78 (Treating a Wind Illness, the Divine Physician Dies; Transmitting Last Orders, the Treacherous Hero’s Number Is Up): Cao Cao’s (曹操, Tào Tháo) head pain brings Hua Tuo (华佗, Hoa Đà) to court. Hua Tuo proposes mafeisan and an axe to the skull. Cao Cao hears an assassination, cites the scraping of Guan Yu’s (关羽, Quan Vũ) bone as a different case, and jails him. Jia Xu (贾诩, Giả Hủ) pleads; Cao Cao refuses. In prison, Wu Yayu (吴押狱, Ngô Áp Ngục) feeds Hua Tuo daily. Hua Tuo sends him to Jincheng for the Qingnang Book, then gifts the volume. After Hua Tuo’s death Wu buries him, resigns, and comes home to find his wife burning the book. One or two leaves — poultry and pig castration — are all that remain. The same chapter then turns to Cao Cao’s last dreams, the deaths of Xiahou Dun and Cao Cao himself, and the succession of Cao Pi. Wu does not reappear.

Prison Guard Wu (吴押狱, Ngô Áp Ngục) — Historical & Literary Timeline

Key Relationships

Family

• Wife of Prison Guard Wu (吴押狱之妻, vợ Ngô Áp Ngục): unnamed in the novel; she burns the Qingnang Book because a physician as gifted as Hua Tuo still died in jail. She is not the jailer. No children are named.

Friends

• Hua Tuo (华佗, Hoa Đà), courtesy Yuanhua (元化, Nguyên Hóa): the prisoner Wu feeds; the donor of the Qingnang Book; the man Wu buries at his own expense.

Enemies

• Wu has no personal campaign. The jail he serves belongs to Cao Cao (曹操, Tào Tháo), whose suspicion killed Hua Tuo. Wu never confronts Cao Cao; he leaves the service after the burial.

Other

• Jia Xu (贾诩, Giả Hủ): the only court voice in the chapter who asks Cao Cao to spare the physician.
• Hua Tuo’s wife in Jincheng: hands Wu the Qingnang Book on the strength of Hua Tuo’s letter.
• Ji Ping (吉平, Cát Bình): the earlier physician-assassin Cao Cao cites as the pattern for Hua Tuo’s “axe.”
• Guan Yu (关羽, Quan Vũ): named in Hua Tuo’s defence — the arm can be scraped, the skull cannot, Cao Cao says.