Hogwarts school of Witchcraft and Wizardry is hosting a Quidditch tournament with an American wizard school, and Eloise Rode, a lonely Ravenclaw, would like to participate. Unluckily, no one knows about her Quidditch talent, because of the fact she's practically a mute.
Oddly enough, her wish to be on one of the competing teams comes true, when she asks Sirius Black to ride his Broomstick, and she shows off her talent to him and James Potter, some of the best Quidditch players in the school.
Also, she's in love with the two Marauders' friend, Remus Lupin. This ought to end well.