Harlem Unbound 2nd Ed. - Call Of Cthulhu - Rules of Play says:
Harlem Unbound 2nd Edition is expanded and improved from the first edition. New areas are shown below:
- Seven scenarios (four new to 2nd Edition).
- Unique occupations tailored to Harlem.
- New Mythos monsters to terrify your players.
- Ready-to-play investigators.
- Random plot generator.
- Crash course on addressing race in gaming.