OSI

Occult Special Investigator series.

OSI consists of five books. The current recommended reading order for the series is provided below.

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Speculative Fiction Books

(OSI #1)
2008 | fantasy, urban fantasy
(OSI #2)
2009 | fantasy, urban fantasy
(OSI #3)
2010 | fantasy, urban fantasy
(OSI #4)
2011 | fantasy, urban fantasy
(OSI #5)
2012 | fantasy, urban fantasy