Based on the Steampunk Victorian webcomic Boston Metaphysical Society, The Devil Within is a novelette based in that universe.
In an alternative Boston of the 1800's, our world has developed along the lines of Steampunk technology, but with a modern twist. Here exists steam driven rudimentary computers and electronics. And dirigibles rule the sky. But with it comes huge social and political schisms which rock the foundations of society.
Andrew O'Sullivan, Medium and Spirit Photographer, who grapples not only with the daily horror of his work with Homicide Detective Angus Mallory, but the toll it takes on him and his family.
This story is included in the anthology, Boston Metaphysical Society: Prelude.
