Scott Pearson 
More Things Change [EPUB ebook] 

A thrilling e-novella based on Star Trek: The Original Series!Six months after the events of Star Trek: The Motion Picture, Doctor Christine Chapel and Spock must save the life of an ailing Audrid Dax, her true nature as a Trill having remained a mystery until now. But after an unknown vessel attacks their shuttle, a risky game of cat-and-mouse may be the only way to save all their lives.