The Moons of Jupiter

Sabotage of a revolutionary advance in space travel means every life is at hazard. Only a handful of highly trusted men were supposed to know the secret. But, someone else knew! For David Starr it was probably the most important and dangerous mission he had ever faced. He had to find the mysterious saboteur before the damage became irreparable. But the unknown enemy didn't seem human. Not even remotely alien, either! This is the final volume in the star-blasting series of David 'Lucky' Starr, Space Ranger.

Published 1975.

Binding of book is intact. Moderate shelfwear, foxing, some creasing and slight fraying on covers of book. Heavy tanning and foxing on edges of book. Heavy foxing and slight creasing on insides of covers. Moderate foxing on certain pages.