Karen Haber 
Bless the Beasts [EPUB ebook] 

In desperate need of crucial repairs, the Starship Voyager TM has come to Sardalia, a planet blessed with great natural beauty and apparently friendly inhabitants. The Sardalians welcome Voyager enthusiastically, but Captain Janeway soon grows suspicious. The Sardalians seem almost too eager to help. Janeway fears they are hiding some secret agenda. When Tom Paris and Harry Kim disappear while visiting the planet, the captain and her crew find themselves caught in the middle of a planetary war — and faced with an agonizing moral dilemma.