The Endgame trilogy continues in the sequel to the New York Times bestseller Endgame: The Calling. Endgame is here. Earth Key has been found. Two keys—and nine Players—remain. The hunt for Sky Key has begun.

Queens, New York. Aisling Kopp believes the unthinkable: that Endgame can be stopped. But before she can act on her own, she is approached by the CIA. And they have their own ideas about how Endgame should be Played.

Kingdom of Aksum, Ethiopia. Hilal ibn Isa al-Salt narrowly survived an attack that leaves him horribly disfigured. But the Aksumites have a secret that is unique to their line. A secret that could help redeem all of humanity.

London, England. Sarah Alopay has found the first key. But getting Earth Key has come at a great cost to Sarah. And the only thing that keeps the demons at bay is Playing. Playing to win.

With only two keys left to claim, the remaining Players will stop at nothing to find Sky Key—wherever it is, whatever it is—as the world begins to crumble.

With alliances shifting and betrayals at every turn, who can be trusted when the fate of humanity is on the line?

• Multiple POV: Follow the hunt for Sky Key from the perspective of reluctant heroes like Sarah Alopay, determined idealists like Aisling Kopp, and scarred survivors like Hilal ibn Isa al-Salt.
• High-Stakes Competition: Nine Players remain, but only one line can survive. In a game with no rules, betrayal is not a risk—it’s a guarantee.
• Alien Origins: The game was created by the Makers, powerful beings from another world. But as the Players discover, even gods can have their own agendas.
• Global Conspiracy: From the streets of Queens to the ruins of Aksum, the Players are pawns in a conspiracy that spans millennia. But when the CIA gets involved, the game gets a dangerous new player.

Several decades before the Players of Endgame met at the Calling, an earlier generation of Players is learning the rules. Each has been chosen as the one to save their ancient bloodline—and win Endgame.

But not everyone wants to see Endgame take place.

A group of conspiracy theorists called the Zero line will do whatever it takes to stop Endgame from happening.

Their plan: kill the Players before Endgame even begins.

Their mission: save the world.

Endgame is real.

Endgame is coming.

But the Zero Line will win.

"The premise is engaging, in a Hunger Games-meets-National Treasure sort of way, and the diverse global cast is welcome."