Polytheism is the belief or worship in multiple deities usually assembled into a pantheon of gods and goddesses, along with their own religions and rituals. Polytheist.
In Roman mythology, the lemures were shades or spirits of the restless or malignant dead, and are probably cognate with an extended sense of as disturbing or frightening. Lemures is the more common literary term but even this is rare: it is used by the Augustan poets Horace and Ovid, the latter in his Fasti, the six-book calendar poem on Roman holidays and religious customs.
Seems too scary
The Romans were sure hiding creepy monsters in their dark places