Ace of spades
(Book)

At Niveus Private Academy, Devon and Chiamaka are the only students chosen to be Senior Prefects who are also black, which makes them targets for a series of anonymous texts revealing their secrets to the entire student body. Both students were on track toward valedictorian and bright college futures, but this prank quickly turns into a very dangerous game and they are at more than one disadvantage as it looks like things could turn deadly.