Instruct: Classify Amazon reviews into positive or negative sentiment
Query: star trek at it's best

this book takes the character of savvick and gives some very nicedetails of her vulcan/romulan past. when a base full of peopleturn up dead, it is found out that all of the oxygen has beenremoved from the room. the key to this mystery lies on savick'sworld of birth. to solve this mystery, her and spock must go backthere. but she is reluctant to bring up old demons and nigtmaresfrom her past but must or the whole federation could be in danger.