Albus Dumbledore tells Ladybug and Chat Noir about a new evil that is rising in Hogwarts. The two heroes must go undercover and investigate a villain named Voldemort, who has somehow gained new ability suspiciously similar to Hawkmoth's: to control both Hogwarts students and animals with a butterfly. Harry Potter crossover set in HP and the COS Disclaimer: All rights go to J.K. Rowling, Thomas Astruc and Zag Animations, cover art is not mine.