Thestals, those dark, evil looking horsies, which it turns out are quite gentle. They are one of the fascinating magical creatures introduced by J.K. Rowling. They feature unknowingly to us, already in The Chamber of Secrets when the horseless carriages take the students to Hogwarts from Hogsmeade station. It is not until the Order of the Phoenix we learn they are pulled by Thestrals, horselike creatures invisible to most. Let's have a quick look at them in the LEGO Harry Potter universe.