El misterio de la noche encantada (Monster Twins, 2)

There is only one night when the supernatural can be themselves without anyone noticing, the night of the enchanted harvest, when Umbrea is going to play with her band. But that concert is going to be much more surprising than I thought because, in the midst of preparing for the festival, a little music box appears, inside which a big surprise is hidden. The group of friends, a very special coven, will have to join forces to help a supernatural stranger fulfill his dream, even if it means going on dangerous ghostly adventures.