And terrifying. From the new book Harry Potter: The Creature Vault .
Harper Collins Design
"Unlike creatures in many other films, the creatures of the Harry Potter films 'are very important to the story,' says producer David Heyman. Harry Potter's story could not be told without them. They provide lessons and challenges to our hero that ultimately help him gain the confident needed for his battle with Lord Voldemort and the Dark Forces."
Below is just a selection of the pictures from the book.
Peter Pettigrew
"Scabbers, once so fat, was now very skinny, patches of fur seemed to have fallen out too." –Harry Potter and the Prisoner of Azkaban
Warner Bros / Harper Design
The Original Harry Potter Creature Concept Art Is Utterly Breathtaking