Beyond the realm of the Federation, beyond the edge of the galaxy, a lost colony of humans in space drifts inexplorably toward the galactic whirlpool. Captain Kirk and the crew of the Enterprise must blaze new star trails to find these strange people, isolated for centuries.

Galactic Whirlpool 1993, Titan Books Ltd, London

ISBN-13: 9781852864866

Mass-market paperback

Galactic Whirlpool 1980, Bantam USA, New York

ISBN-13: 9780553142426