BLACK MEDICINE, by Arthur J. Burks. c.1966, Arkham House. Hard cover. 308 pages. 1st edition.
Description from Goodreads.com...but it was too good to not use:
"Strange tales of Santo Domingo.--Three coffins.--When the graves were opened.--Vale of the corbies.--Voodoo.--Luisma's return.--Thus spake the prophetess.--Black medicine.--Bells of Oceana.--The ghosts of Steamboat Coulee.--Guatemozin the visitant."
dust jacket has rips and lots of wear but still does the trick.