Multiple choice general knowledge uncontrollable fire which can take the form of beasts such as serpents Serpento Curse Fiendfyre Curse FoeFyre Curse Beasty Curse Reveal answer Fill a bubble to check yourself B Correct answer Explanation Fiendfyre is an uncontrollable cursed fire that can take the shape of beasts like serpents and chimeras. The other options are not canonical Harry Potter spells.