|"Are you a wizard or not?"
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An enormous moving tapestry depicting Barnabas the Barmy's foolish attempt to train a group of eight trolls for the ballet hung on the seventh floor corridor of Hogwarts Castle, opposite the entrance to the Room of Requirement.  The small group was portrayed by a forest clearing, and some of the trolls were hitting Barnabas with their clubs. 
Behind the scenes
- According to Harry Potter Limited Edition, there were six trolls rather than eight.
- Harry Potter and the Order of the Phoenix (First appearance)
- Harry Potter and the Half-Blood Prince
- Harry Potter and the Half-Blood Prince (video game)
Notes and references
- ↑ 1.0 1.1 Concept art to Harry Potter and the Half-Blood Prince (film) by Adam Brockbank
- ↑ Harry Potter and the Half-Blood Prince - Chapter 24 (Sectumsempra)