Wormtail ignored him however, and returned to the cauldron and bundle after shoving a black cloth into his mouth, gagging him. Harry was forced to watch as Wormtail moved the cauldron and heated it up, he saw how the traitor’s movements were frantic, like he was trying not to panic. When the cauldron and its contents were ready, Wormtail opened the bundle of cloth and Harry gagged.