EDIT: This is not a case of two people plagiarising the same fic - just the one person. It was first plagiarised as DANCES WITH MONSTERS, but then later re-published with a new author name and new title as THE TORNADO. Or so I've heard. Word on the street it's been taken off Amazon.
Seeing reports that Missy Blue's THE TORNADO may have plagiarised a fanfic... (click above link)
Also, that same fanfic may have been plagiarised AGAIN - also as D.C. Ruins's DANCES WITH MONSTERS, according to this link.