Elysium Girls

From a lush, dazzlingly original new voice in young adult fantasy comes an epic clash of witches, gods and demons as the fate of humanity hangs in the balance.
Elysium, Oklahoma, is a town like any other. Respectable. God-fearing. Praying for an end to the Dust Bowl. Until the day the people of Elysium are chosen by two sisters: Life and Death. And the Sisters like to gamble against each other with things like time, and space, and human lives. Elysium is to become the gameboard in a ruthless competition between the goddesses. The Dust Soldiers will return in ten years' time, and if the people of Elysium have not proved themselves worthy, all will be slain.
Nearly ten years later, seventeen-year-old Sal Wilkinson is called upon to lead Elysium as it prepares for the end of the game. But then an outsider named Asa arrives at Elysium's gates with nothing more than a sharp smile and a bag of magic tricks, and they trigger a terrible accident that gets both Sal and Asa...