Just Another Dead Martian by Volk Presmaren
Approx. 70,610 words.
Published on April 9, 2013 by
An intelligence agent from Mars travels to Earth to thwart a revolution set to coincide with an ancient doomsday prediction. The problem? The three leaders of the current revolt were killed ten years ago! Aided by a local reporter, he digs through the records to find more evidence. What he finds is another victim in the past: himself. Racing against time, he has to solve the riddle fast, or die.