The Shrovetide Affair (WT 52)

After Mardi Gras, a man returns to his friends as a zombie, dead as a doornail, heart ripped from his chest  and asks them to help him get his heart back by finding the voodoo master who took it. This is a deal made with the devil and no good can come of it.

Published in Deals With The Devil, an anthology edited by Stephanie Morrell
Available at AMAZON