Oh, What a Tangled Web (Candlelight Regency #671)

the long version

She seemed perfect -- as exquisite as a porcelain doll with a face like a cameo. But rumor was rampant. She had a bizarre deformity. A hideous hidden birthmark. She was mad. How else explain why a beauty like Callie Belcroft had been kept so discreetly hidden away? — Callie knew only to well that she had an odd malady -- a malady this foray into London society was meant to cure. The whispers and wagging tongues made her long to retreat and she emerged a heroine -- with Tristam Fillford, Marquis of Waivering, at her side as hero--the one man to whom she would never wish to deceive.