Of Bone and Ruin - T A White - Bog

An ancient discovery has been made close to the city of Aurelia-one that promises wealth and power equal only to the dangerous secrets lying at its heart. With three powerful groups vying for control of the discovery's unlimited potential, it will take a delicate touch not to tip the scales toward war. Something Tate Fisher, a newly accepted dragon-ridden with a bit of a memory problem, has never been known for possessing. Tate must learn to navigate the undercurrents of this society if she wants her friends and empire to come out the other side in one piece. Because these secrets involve Tate, and they don't intend to let her go so easily.