4 books in series

Ghostbusters: The Other Side

Ghostbusters: The Other Side is a 2-book series with 4 primary works first released in 2008 with contributions by Keith Champagne.

Ghostbusters: The Other Side Issue #1
Ghostbusters: The Other Side Issue #2
Ghostbusters: The Other Side Issue #3
Ghostbusters: The Other Side Issue #4