Miraculous Ladybug Season 6 Episode 17 A Fairy Good Night Episode Title: A Fairy Good Night Episode Description: Claudie is going on a mission to the International Space Station which would place Max under the custody of the European Space Agency. Because Max's autism makes him stick to strict routines, he cannot easily adapt to the loneliness. Upon advice from Dr. Psiquat, he decides to stay over at Marinette's house for a night. At first, she tries to recreate Max's home life exactly, but she later loosens up, doubting whether her original overaccommodation would work. That night, her fears come to life when a ghostly version of Rena Rouge appears, which is the result of "A Fairy Good Night", a villain that brings people's wishes to life in destructive ways. Ladybug, Cat Noir, and Pegasus travel to the moon to fight and defeat the villain, helping Max realize that adapting to change is possible and good. Later, Chrysalis sends a love letter to Max.