Star Trek: Vulcan's Heart Book

Surprisingly good. If you had told me that I would give four stars to a novel about Spock battling the effects of pon farr, I would not have believed you. I would have said, "I've seen that plot done dozens of times, and they've all been badly done wish-fulfillment by female Trek fans." But this story actually works; it manages to retain the essence of the character even while showing him struggling with emotions of unaccustomed strength. Further, it does a fine job of tying in to the Next Generation episode "Yesterday's Enterprise", showing the battle of the Enterprise C against the Romulan attackers of the Klingon civilian outpost Narendra III.
All in all, the plot is tight and plausible, the characterizations consistent both internally and with what we've seen in other Star Trek venues, both page and screen, and the story is one well worth telling. The writing is competent, although it would help if the publisher did a bit better job of proofreading/copyediting. Well worth reading for anyone familiar with the series; I can't speak for those who aren't.