Star Trek: The Original Series: The Janus Gate Book Three of Three: Past Prologue
First published on June 25, 2002 and written by and contains
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In the final part of the trilogy, we find that space and time have been altered by the Janus Gate. Members of the crew of the Enterprise have been thrown backward and forward through time, altering history, and then returning to the present many years older or younger. Mr Spock and Chief Engineer Scott have managed to avoid the effects of the Janus Gate and are trying desperately to reorganise the crew and to find a way to pass them through the gate to restore them to their proper ages. This task is made even more difficult when they realise that they must re-adjust history to ensure not only that everyone still exists in the present, but also that the Federation itself has a future.