Kaner, Hannah. Fallen Gods trilogy.

"A Fallen Gods Novel"

"Gods are forbidden in the kingdom of Middren -- but now they are stirring, whispering of war. Godkiller Kissen sacrificed herself to vanquish the fire god Hseth, who murdered her family and endangered her friends. But gods cannot be destroyed so easily, and Hseth's power threatens to re-form with even greater strength and a thirst for vengeance. As tensions rise throughout the land, the kingdom needs its godkiller more than ever. Still reeling from the loss of Kissen, young noble Inara and her little god of white lies, skedi, have set out to discover more about the true nature of their bond. As the divide between gods and humans widens, Inara and Skedi will uncover secrets that could determine the fate of the war to come. Meanwhile, Elogast, no longer a loyal knight of the King Arren, has been tasked with killing the man he once called friend. The king vowed to eradicate all gods throughout the land, but has now entered into an unholy pact with the most dangerous of them all. And where his heart once beat, a god now burns..." -- back cover