I am currently reading the Star Trek book Crucible: McCoy: Prevenance of Shadows, and I am a little bit pissed off.

The book is exceptionally well-written, and is bold in its attempt to record McCoy's career and an alternate past where McCoy saved Edith Keeler, and changes history. But David R. George III's book basically resets Pocket Books' Star Trek history.

For example, in the 1988 novel Final Frontier, after the episode "City on the Edge of Forever", Kirk returns to Earth to mourn Keeler, and discovers his father's diary, and learns that George Kirk served on the Enterprise under Robert April. Now, 18 years later, that never happened. Instead, the ship leaves the Guardian of Forever and goes to Deneva to stop flying parasites that spread mass insanity.

Later, after the events of the episode "For the World is Hollow and I Have Touched the Sky," George writes that McCoy never saw Natira again. So much for the 2004 novel Ex Machina!

Korax destroys the Guardian of Forever, invalidating the TOS novels Yesterday's Son, Time for Yesterday, the animated series episode "Yesteryear" and the TNG Novel Imzadi. In the aftermath, Kirk is promoted to Admiral and is excited by the prospect, and McCoy resigns from Star Fleet because he's tired, and not in protest to Kirk's promotion, as Star Trek creator Gene Roddenberry wrote in the adaptation of Star Trek: The Motion Picture. Spock's resignation is because of Zarabath, not because he failed McCoy who was kidnapped by someone posses by the katra of a mad Vulcan warlord and chronicled in 1988's The Lost Years. That might invalidate the remaining books in "The Lost Years" Saga.

Attention Pocket Books: Take a page from Ballantine Books, the publishers of the Star Wars books, and make all your Star Trek books internally consistant!