The Cornish Princess by Tanya Anne Crosby

Long before there was a Winter King, there was a Summer Queen. And before Boudicca, there was Gwyndolyn of Cornwall, a fierce warrior queen who raised an army to unite nations.

Said to be a changeling child awarded to the King and Queen of Cornwall, Gwyndolyn is “blessed” at her christening with three fae gifts: a prophecy for her future, a gift of “Reflection,” and a golden mane—literally. Every lock of her clipped hair will turn to filaments of gold, provided it is cut by her one true love.

Alas, no one understands more than Gwyn that her blessings are in reality curses. Any man who gazes upon her will see his own heart reflected in her countenance, and depending on his virtue, she is either the loveliest woman in all the land… or the most hideous. It’s a cruel jest of the capricious Fae, for unless a man’s heart be true, she is destined to be coveted for her wealth, and despised for her face.

To make matters worse, Gwyn’s aging and ailing father is desperate for an alliance with King Brutus of Loegria. The Romans are coming, and according to the Goldenchild Prophecy, only by uniting their Draig banners can they stem the Red Tide. He offers her to the ambitious and cruel Loch, who fought his way through the ranks and is reputed to have murdered his elder brothers. But so far as Loch is concerned, his betrothed is only an eyesore to be tolerated. He would never have married the girl if it weren’t for the fact that her shining golden tresses were supposed to fill his coffers—a lie, because her hair is no more than a tangled nest of golden curls.

But Gwyndolyn was not destined to be a spurned wife. To achieve her destiny as the Pen Draig, she must survive the treachery of Loegria’s court, and the torments of her betrothed…