Vines of Promise and Deceit by Melanie Cellier

With the nomad delegation in Tartora, a royal tour is underway. But with the threat from both the raiders and the fallen kingdom itself growing, Cadence and Zeke’s charade is stretched to the breaking point as they fight to protect their friends. But as Cadence struggles to keep them all alive, she refuses to give up on helping her sister—if only she knew how to do that.

But Airlie isn’t helpless. Determined to find answers about her and Cadence’s heritage, Airlie is still willing to do anything to protect her sister. But Cadence is moving beyond her reach, and even Airlie’s enormous power might be helpless to defeat the looming danger that’s threatening the tour.