What happens
At Parliament in Bury, Queen Margaret and the nobles conspire against Duke Humphrey, accusing him of treason and corruption. Humphrey defends himself eloquently, but the conspiracy is too powerful. He is arrested despite King Henry's protests of his innocence. News arrives that York has returned from Ireland with an army, claiming only to remove Somerset—but the scene ends with York alone, revealing his true ambition to seize the crown and exploit the chaos he's orchestrated.
Why it matters
This scene is the play's political fulcrum. Margaret's speech against Gloucester is masterfully constructed, using the language of concern for the kingdom to mask her naked ambition. She positions herself as the protector of Henry's interests while systematically dismantling the one man who might actually defend him. The irony cuts deep: Gloucester warns that his arrest will lead to worse conspiracies, and he's right—his removal opens the door for York. What makes the scene particularly tragic is Henry's helplessness. He sees the truth ('My conscience tells me you are innocent'), but his piety and weakness render him powerless. Words fail where they should convince; authority evaporates where it should command.
York's soliloquy at the scene's end reframes everything we've just watched. The conspirators think they're engineering Somerset's removal; in fact, they're clearing the board for York's ambition. He has deliberately stoked Eleanor's witchcraft scandal, used Cade as a tool, and now watches as Suffolk, Margaret, and the Cardinal do his work for him. His patience—'But now it is impossible we should'—reveals a cold strategic mind. By the time he exits, we understand that Gloucester's arrest isn't the climax of a conspiracy; it's the first domino. York's final line—'For Humphrey being dead, as he shall be, / And Henry put apart, the next for me'—transforms the entire play's direction from court intrigue to dynastic warfare.
