Help! Tom's spaceship has time-warped back to King Arthur's day, and Tom, the king - and a maiden - are all in distress. Evil Sir Mordred and Merlin the Magician are plotting to take over the territory. Will Tom's space-age tricks triumph over Merlin's murky magic?
Used availability for Vic Crume's Unidentified Flying Oddball
April 1980 : USA Paperback