Mania vs Muse

Mania

name

  • The goddess of the dead and ghosts. 

Muse

name

  • any of the nine goddesses who inspire the creation of literature and arts in Greek mythology 

noun

  • One of the nine Ancient Greek deities of the arts. 

How often have the words Mania and Muse occurred in a corpus of books? (source: Google Ngram Viewer )