Three pursuit-ships from Doom strike down a fourth over Arus and Hunk finds a young girl was the sole occupant. Taken to heal in the castle, she says that she is a slave named Twila who escaped Planet Doom. Keith hesitates to believe her account of such a quick getaway, but Hunk is convinced that she is what she says. Nobody expects her to place a time-bomb in the missile-base with the help of Haggar's power. But Hunk goes out alone to stop her escape and to learn what reason she would have for spying for Zarkon. What he learns is that she is truly a slave, but a slave desperate to believe an empty promise of complete freedom - and she isn't the only one, since a creature who was once a human prepares to attack in the same plot.
—brainybrailler@comcast.net