Characters guide

When James Potter II, Albus Potter, Lily Potter II, Teddy Lupin, Victoire Weasley, Dominique Weasley, Rose Weasley, Hugo Weasley, Fred Weasley II, Roxanne Weasley, Scorpius Malfoy and Alice Longbottom II go back in time to their parents 5th year how will they return home to their normal time period.