Name: Star Trek: The Original Series: From History's Shadow
ISBN: 9781476719009

Dayton Ward

Captain James T. Kirk discovers two intruders from Earth in the year 1968 on the Enterprise in 2268, a Vulcan and a member of an unknown race who has spent twenty years trying to bring about the destruction of humanity.

Star Trek: The Original Series: From History's Shadow

Andrea Mack

While not a TOS reader, the book's blurb (and admittedly, the cover) grabbed me immediately - I'm a sucker for anything with time travel in it. This is a fun, but intense, hunt for unidentified flying objects in the mid-20th Century Trekverse. 

With some interesting characters (Wainwright, Marshall, Sutherland) and some encounters that left me with the chills, I'd definitely recommend this read to Trek fans. There's a lot of real life history tied-in with Trek episodes, so don't read when you're tired!

Read my full review at Something Unpredictable.