Ace, New York, 1967, 1^st ed/paperback original.  G-613.  Based on the exciting MGM-Arena TV series.  MMPB, 159 pages.  Near fine; tight binding; faint upper corner bend.  Interior clean and unmarked with tanned pages.  Agents Napoleon Solo and Illya Kuryakin.  ‘United States officials knew the monstrous space satellite was not theirs.  The Russians could not claim it either … nor England, nor France.  It was an enigma, an awesome weapon of war hanging over the entire world … waiting … Waiting for what?  Napoleon Solo and Illya Kuryakin had to uncover the mystery behind the Monster Wheel before it was too late – and with each clue they uncovered, the threat became more horrifying!’ (from rear wrap)