His heart was cold iron, until she broke through the fissures and lit him aflame. Beth Carmichael was at the top of her medical career, married to a handsome allergist, and loving life...until she caught her newly minted husband cheating on their wedding day. Jilted and heartbroken, she flees to an antique shop, where an old artifact sends her through time to 1770. For the widower blacksmith Thomas Brannigan, every strike of his hammer opens a new wound. His days are hollow as he forges bayonets en masse to feed the needs of a burgeoning colonial Boston. But his heart's no longer in it. The spark died along with his wife, as well as his interest in love. When Beth is mistaken for a serving girl in the home of a wealthy whaler, she's not prepared for the charade...or her dealings with the quiet, hulking blacksmith who makes her run as hot as his forge, even through his icy coldness. Tempers flare hot against the rising peril of pre-Revolutionary War Boston. While Beth finds acceptance as a midwife, Thomas struggles to tamp down his attraction to the enticing, curvaceous redhead. But with Beth's time in the past running out, Thomas must face losing his heart again or risk Beth's life in the process.