"Secret of the Martian Moons" is a science fiction novel by Donald A. Wollheim, published by The John C. Winston Company, first edition 1955.
"Back to Mars! at long last - after four years of interplanetary study on Earth - Nelson Parr stepped aboard the Mars-bound space liner that was to carry him to his home planet. By the year 2120. Earth had established a colony on Mars and had explored the land-originally inhabited by Martians, a weird yet intelligent people... a vanished race. But when Nelson discovered the three-fingered hand print in his cabin, he couldn't help but wonder whether the intruder might have been Martian. Could it be that the Martians still lived?
The teenager reached Mars to hear disheartening news - the inhabitants of the red planet were ordered to return to Earth. But Nelse, his father and four other scientists disobeyed. They rocketed to Phobos, a satellite of Mars, where they set up their equipment to observe phenomena on the red planet...unaware that they too were being observed! When through the telescope they sighted strange events it was decided that Nelson and a companion should take up a post on the other satellite, Deimos.
"Crash-landing " into a realm of space-tense adventure, Nelse, his companion murdered by outer-world beings, came to grips with the mysterious forces of space, alone. Capture, escape and capture follow one another in dizzying spiral of desperate events to this book's hair-raising climax."
206 page hard cover book in good condition with no rips, tears, or writing. The cover is faded. The dust jacket is in poor condition. See the pictures for more details