Endgame: Sky Key

In the gripping sequel to "Endgame: The Calling," the race intensifies as the remaining Players seek the elusive Sky Key after the Earth Key has been claimed. Aisling Kopp grapples with the belief that Endgame can be thwarted, while the CIA has its own agenda. Meanwhile, Hilal ibn Isa al-Salt faces his own demons following a near-fatal attack, and Sarah Alopay navigates the high stakes of the game that has already cost her dearly. With the world on the brink of chaos, both Players and factions will do whatever it takes to claim the last two keys.