Ridiculous, that's what Mark thought of Ramsay's theory of the events they were going through being a loop. They might share some similarities, but each were distinct enough to be considered separate. If there really were a loop things would have gone differently against King Scorpion, like the others suddenly getting busy which would force him and Lara to fight the Demon until help arrives.
In conclusion, the similarities shared by the events were coincidences and had no special meaning behind them. It was a satisfying conclusion, one Mark saw himself accepting if not for that part of him which insisted that he was the protagonist of a novel.
His mind kept going back to the matter as if trying to see through the plans of the author, and his obsession led him to look at every clue no matter how small.