Alfie was taken into the tank room after being caught in the chimney. They then tried to make him angry but he wouldn't cooperate. He then bragged at 11:59 am that he wasnt sinning. Then Denby, Victor and Frobisher talked about a fake plan B of taking Willow instead of Alfie. That caused Alfie to crack and then was thrown into a sarcophigi making him Frobisher's 5th and final sinner, although he needed more sinners to make Ammut a human form.