Sadly, monsters, demons and the generally sociopathic are not creatures contained to fiction. Another blogger has written an excellent post on the dangers of not thoroughly vetting an independent publisher before sending work. I highly recommend reading it, for your sake, and reposting, for everyone else.
By the way, Sirens Call Publications and Angelic Knight Press are two extremely trustworthy presses. If you’re a writer of dark, edgy or unusual fiction, you should check them out.
Be wary, Travelers.