Highland Storm (Guardians of the Stone Book 3) by Tanya Anne Crosby

Embark on a journey into magical Medieval Scotland, with the last princess of Moray and the last Pecht prince. Each Man to His destiny. As the last male heir of the dún Scoti clan, Keane's future is known from the hour of his birth: Someday, he must take his brother's place as Guardian of the true Stone of Destiny. But fickle Highland winds will turn. To quell a looming rebellion, King David of Scotia commands the marriage of a granddaughter of the traitor MacBeth to de Moray's new laird, a man rumored to be as dangerous and conniving as his father. A Kiss to Change the Fates. When Lianae of Moray seeks protection from Keane dún Scoti, for a stolen kiss and the chance to hold his own fief, the last Pecht prince will turn his back on kith and kin, fulfilling a destiny only the ancient seer has foreseen.