The story involves a young orphan girl (Dakota Blue Richards) who, with the aid of a magic compass, sets out to find two friends who have been kidnapped, for nefarious reasons, by the Magisterium.
It ends with a big showdown between Harry and his friends, and Voldemort and his supporters at the Ministry of Magic, when Sirius is tragically killed.
His chance to flee their Dickensian gloom comes with the appearance of a magic peach in the garden: he crawls inside, where he finds a posse of insect friends, and travels by air and sea to an improbably benign New York.