Shakespeare's Planet

[1] Carter Horton and three other crew members are sent on an interstellar mission to find a planet which would be suitable for human life.

Upon awakening, Carter finds that the ship refuses to return to Earth.

He meets the ship's robot, Nicodemus, but the only living thing he encounters is the alien Carnivore, who claims he came there through a time tunnel.

Others arrive via the time tunnel, but it is much more difficult to leave the planet in that manner.

Ideas were presented by the spaceship's three minds or personalities in their own private discourses.