After proving herself a worthy equestrian competitor with her horse, Charm, Sasha Silver is anxious to return to Canterwood Crest, until she learns that the most arrogant girl in school, Heather Fox, is her assigned riding partner.

Fourteen-year-old Harry Potter joins the Weasleys at the Quidditch World Cup, then enters his fourth year at Hogwarts Academy where he is mysteriously entered in an unusual contest that challenges his wizarding skills, friendships and character, amid signs that an old enemy is growing stronger.