MERRY CHRISTMAS, COWBOY You can put him in a cast, but you can't keep Bowie Calhoun down. Broken ankle or no, the flirty cowboy has no intention of spending Christmas lying in bed--unless he has company. The serious-minded nurse who is hired to tend his wounds isn't biting. Ava Archer is a widow; she lost her husband to war. She'd never consider falling for a patient, especially not a "wild child" like Bowie, who battles fires for a living and takes...