Rise Up from the Embers by Sara Raasch and Kristen Simmons

Two gods are dead. The Mother Goddess has returned. War is rising. Fleeing war-ravaged Deimos, Ash and Madoc sail across the ocean to their only possible allies: the water and plant gods. But when Anathrasa attacks on the way, Ash leaps to the defense—by using a power she didn’t know she had. When Madoc made the fire and earth gods mortal, he inadvertently transferred their magic to Ash. Now, if Ash can get energeias from the other four gods, she would be powerful enough to end Anathrasa once and for all. But not all the gods want the Mother Goddess defeated. To stop…. Read more.