Act 4, Scene 1 Summary

Billy is in his office and prances maniacally, as the plans for the new state capitol building have just been completed. Margaret arrives to see Dion and Billy exits to another room to change masks. Margaret comments on the same clothes and Billy, as Dion, passes it off as the fact that he and Billy are so close now they even dress alike. His behavior becomes increasingly more frantic, especially when the state capitol committee members arrive.

Billy can no longer maintain the façade and breaks down, tearing up the capitol blueprints. He runs to the next room to put on Dion's mask and runs away down the staircase. Soon after, one of the younger draftsmen finds Billy's mask in a side room and it is declared that Dion has killed Billy. Margaret proclaims Dion's innocence but the police are...