"But he will have power the Dark Lord knows not", a certain Kwami of Destruction, Harry Potter must conceal another secret from his friends, the wizarding world, and the Muggle World, his alter-ego ShadowCat. Now he must dodge Hermione's questions and why has she suddenly started wearing earrings? And another themed hero joins him at Hogwarts; The mysterious Ladybug, who is she?

Percy Jackson, Annabeth Chase, Anna Aphrodite(OC), Piper McLean, Jason Grace, and Leo Valdez are chosen to go on a quest to Paris to retrieve 4 demigods. Percy Jackson and the Olympians and Miraculous Ladybug and Chat Noir crossover!

He was so sure that Ladybug would already push him off a rooftop if she knew his civilian identity worked at a café called "Paws Fur Coffee" of all names, but his flub on the chalkboard menu just topped it all off. His neat handwriting read back to him: "Chai Noir". (In which Adrien has some cool drink ideas and gets to know a regular customer) [Cafe College AU]