From the back of the book:
"The crew of the USS Enterprise must find out why the crew of Federation Deepspace Research Facility 39 have suddenly disappeared in mid-conversation - before they too are among The Vanished!
Recommended for 6 players using familiar characters from the classic 'Star Trek' TV series. Includes FDR Facility 39 details and deck plans, and Tournament notes."
Games: Globbo!, Superworld (2nd Edition), Star Commander, Recon,Star Fleet Battles Volume II; Supplements: Most