By the end of the day Morgana had summoned a gigantic clown head--white with red lips--and was the most striking Halloween decoration they've ever had. Arthur watched as Merlin and Mordred helped her. He was in charge of costumes. As in, he was meant to get what Morgana wanted. She had a clear vision: they would be a family of clowns.
Every trick-or-treater who knocked on their door ran away in fear.
Arthur couldn't fathom why.