The queen will betray you

"After a thousand years of political stability, the realm of The Sand and Sky is up for grabs. Four kingdoms, four rulers vying for the ultimate prize, sovereignty over the entire continent: A ruthless old king spinning webs, whose schemes encompass generations. A widowed queen whose only credo is all kings must die. A runaway queen whose unexpected return upends everyone's plans. And a prince-in-waiting determined to wait no more. Standing against them are a dispossessed princess and her stable boy love with a surprising claim of his own. Their only hope in the face of unspeakable betrayals, enemies hidden in the shadows, and insurmountable odds is the power of true love"--Provided by publisher.