Thomas Brown re-enters, now dressed as befits the Duke of Islington, and he grandly proposes to make Eliza his Duchess. She bursts into tears, reluctant to leave her beloved animals behind, but Thomas tells her not to worry: he has bought them all! Carboy now returns. His suicide attempt has failed, this time because the bear pit is being renovated, and the bears have been moved. He vows to head for the lion's den, but the Duke stops him. Thomas has reached a financial settlement with Mr. Grinder, who is now willing to accept Carboy as his son-in-law. The two pairs of lovers are united, and all ends happily, with the public proudly declaring that "Britons never, never will be slaves!"