Echo of Roses by Paula Quinn

After receiving a dragon brooch from a distant great aunt, twenty-first century historian Kestrel Lancaster finds herself in fifteenth century England. Smack in the middle of a war. Like…in the middle of a blood and guts spewing, heads flying around her war. With six armored men riding toward her, bloody swords raised high in the air, horrified looks on their faces, there isn’t time to think. Only to scream. But like a dream, a dark knight rides into the fray and saves her from them all. When she realizes where and when she is, she doesn’t know whether to thank him for keeping her alive or curse him for it.

Sir Nicholas de Marre has seen many things in his years as military commander for the House of York, but he has never seen a woman appear right before his eyes—and in the middle of the battlefield. Without thinking, he kills the Lancaster bastards closing in on her. Thankfully for her he is able to fight with her deafening screams behind him. He saves her from certain death, not knowing if she is mad, or he is, and carries her to safety.

That’s his first mistake. The second is showing her mercy when he finds out she’s a Lancaster. But this odd woman who takes pictures with imaginary phones and teaches Cook to make cupcakes is easy to fall for, and before long, the heart of York’s champion is captured by a Lancaster.

England’s throne is about to change. The House of Tudor will reign, and the War of the Roses will finally be won with the intimacy of a kiss, the tenderness in a touch, and love that will echo through time.