Plot Summary
Chapter 16 opens in the aftermath of the brutal attack on Mrs. Joe Gargery. Pip, his head still full of the cautionary tale of George Barnwell, initially fears he might somehow be implicated in the assault. Joe reports that he was at the Three Jolly Bargemen from a quarter past eight until a quarter to ten. When he returned home, he found Mrs. Joe struck down on the floor. Nothing had been stolen, but beside her lay a convict's leg-iron that had been filed apart long ago.
The authorities from the Hulks confirm the leg-iron does not belong to either of the two convicts who escaped recently. Pip privately believes the iron belonged to his convict — the one he helped on the marshes — and suspects either Orlick or the mysterious stranger with the file. However, Orlick has a solid alibi, and the stranger had no obvious motive. The police investigation proves fruitless, and no one is ever charged.
Mrs. Joe survives the attack but is left severely impaired: her sight, hearing, memory, and speech are all damaged. The family communicates with her through a slate. When Mr. Wopsle's great-aunt dies, Biddy moves in to care for Mrs. Joe. Biddy proves indispensable, decoding a mysterious symbol Mrs. Joe repeatedly draws on her slate — a shape like a "T" that turns out to represent a hammer. Biddy realizes it signifies Orlick. When Orlick is brought before Mrs. Joe, she does not denounce him but instead shows an anxious desire to appease and conciliate him — a disturbing reversal that closes the chapter on a note of unresolved tension.
Character Development
Pip's internal struggle deepens as guilt over providing the weapon — however unwittingly — torments him. He debates daily whether to confess the secret of his childhood encounter with the convict but ultimately decides to remain silent, fearing Joe's alienation or disbelief. This moral cowardice marks a critical moment in Pip's development, as he chooses self-preservation over honesty. Biddy emerges as a quietly competent figure, demonstrating sharp intelligence and empathy. Mrs. Joe's transformation from domineering tyrant to a trembling, conciliatory figure dependent on others represents one of the novel's most dramatic character reversals. Orlick remains inscrutable — his slouching presence and Mrs. Joe's strange deference to him create an atmosphere of menace.
Themes and Motifs
The chapter foregrounds guilt and secrecy as defining forces in Pip's life. His inability to reveal the truth about the convict parallels his broader tendency to keep painful truths hidden. The theme of justice and its failures is sharpened by the incompetent investigation, in which constables arrest the wrong people and fit circumstances to preconceived ideas rather than reasoning from evidence. The leg-iron — once a symbol of criminal punishment — is repurposed as a weapon, suggesting that the instruments of justice can themselves become tools of violence. The motif of communication breakdown appears through Mrs. Joe's impaired speech and the family's struggles with the slate.
Literary Devices
Dickens employs dramatic irony throughout: Pip suspects the truth about the leg-iron, but cannot share his knowledge without revealing his own secret. The chapter's satirical tone is evident in the portrayal of the Bow Street officers, whose "mysterious manner of taking their drink" is "almost as good as taking the culprit." Foreshadowing permeates the chapter — Mrs. Joe's submissive behavior toward Orlick hints at a connection between attacker and victim that will be confirmed later. The recurring image of the hammer on the slate functions as a symbol within the narrative, representing both Orlick's identity and the violence done to Mrs. Joe.