Santa's Twin & Robot Santa vintage Books by Dean Koontz scarce collectible pair

Set of two illustrated books by Dean Koontz: 'Santa's Twin' and 'Robot Santa'. Vibrant covers with festive dark childlike themes. From the famous suspense author Dean R. Koontz Scarce collectible hardcovers with dustjackets Santa's Twin 1996 Robot Santa: The Further Adventures of Santa's Twin 2004 (1st edition) A rare find to get them both Minor shelfwear age/use corner bumping and wear pen shown for scale, as is, as inherited