When she gets a night-time visit from a tiny magical creature it seems as though her luck will change.

Each guild has a familiar, a small magical creature who accompanies and assists the player throughout the game.

Things get more complicated when the star turns out to be flesh and blood, and all manner of magical creatures are after her.

Those riding it will plunge 'into the path of some of the wizarding world's rarest magical creatures', all while riding on a thrilling rollercoaster.

Sometimes the term describes any magical creature, including goblins or gnomes: at other times, the term only describes a specific type of more ethereal creature or sprite.