In reading order
The Omni Towers Boxed Set, Books 1-3
Jamie A. Waters
Beneath the Fallen City
Jamie A. Waters
Shadow of the Coalition
Jamie A. Waters
Tremors of the Past
Jamie A. Waters
The Omni Towers Boxed Set, Books 4-6
Jamie A. Waters
Drop of Hope
Jamie A. Waters
Flames of Redemption
Jamie A. Waters
Spirit of the Towers
Jamie A. Waters