Troupe of dancing skeletons

At Hogwarts School of Witchcraft and Wizardry, there were rumours that Professor Dumbledore had booked this troupe of dancing skeletonsfor the entertainment at the 1992 Hallowe'en feast. It is unknown whether or not these rumours were true. However, judging from the fact that for a few days after the Hallowe'en feast "the schhol could talk of little but the attack on Mrs. Norris", it seems that the rumours were either untrue or the skeletons weren't very interesting. However, to be fair, the attack on Mrs. Norris was considered very interesting by most students.

Behind the scenes
The skeletons weren't mentioned in the film version of Harry Potter and the Chamber of Secrets

Appearances

 * Harry Potter and the Chamber of Secrets