The Key to Reality by F. Ted Atchley
A desperate father holds the key to victory in an alien civil war. If he chooses well, he'll reunite his family. If he chooses wrong, they all die. An Elite Cybersecurity Analyst. A Desperate Rebellion’s Best Hope. Brandon thought the assignment was just another standard security assessment. Wrong. As he peels back the layers of a deepening conspiracy, he discovers everything he thought he knew about his reality is a lie. And he’s the only one who can save it. Exiles from another reality see Brandon’s new knowledge as the key to victory over their tyrannical king and his immortal army. Pursued by both loyalists and rebels as he crosses the borders between realities, Brandon must protect his family, while figuring out who to trust. Choosing well means rescuing his family, and saving both worlds, but choosing poorly will empower a malevolent evil to wipe out humanity.
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