Secrets of Songbirds

Princess Cirilla of the Skagos Isles commands a legion of wyverns as her King and Brother Bane leads a battle against Lord Ramsay Bolton's armies. When everything goes to shit, it is Cirilla who must command his armies and turn the tide of battle under unrelenting circumstances.
No-one knows who was the first to step foot on Skagos. The Andals, the Children of the Forest, the White Walkers. Their gods are foreign, their lives hidden from view of King's Landing. When the others threaten the wall though - it is Cirilla who must work with Jon Snow to turn the tide of war.