From publisher blurb:
Superheros vs Super Horrors!
Halloween Horrors is a supplement for Supers! Revised that features 6 foes for your heroes to face Each foe creates fear in normals, so how will your heroes react when they encounter them?
From a creature out of folklore, to a spawn of a Cosmic Horror, there are not typical opponents heroes face.
Each creature features a journal entry from Xavier Stone, occult investigator, as well as background information and stats for each creature. In addition, each creature has a "Terror-Tastic Tidbit" which is a short adventure seed to help get starting using them right away.
There's also paper standees for all six creatures (and Xavier) you can print and use.
How will your hero fare? Will they do as always, and shine in the face of danger, or will they flee in terror from these things that go bump in the night?