From the Publisher:
The scene in Papa La-Bas is New Orleans in 1858. There, strong men, lovely women, dark magic and violence swirl around Senator Judah P. Benjamin, who can solve any problem by logical analysis, and Richard Macrae, Her Majesty's Consul, when they witness a devilish murder.
John Dickson Carr: Papa La-Bas. Carroll & Graf, ISBN: 0786705027 (March, 1998), 288 p., $4.95.