David R. George's Crucible Trilogy explores the legacy of one pivotal, crucial moment in the lives of the men at the heart of Star Trek -- what led them to it, and to each other, and how their destinies were intertwined.

In a single moment, Spock watches Jim Kirk allow the love of his life to die, thereby preserving Earth's history. Challenged by the thorny demands of his logic, he will have to find a way to face his conflicting decisions.

In a single moment the lives of three men will be forever changed.