The Masquerading Heart — Caroline Courtney

They were twins who looked exactly alike--to strangers. Those who loved them recognized the spirit in Serenity's eyes, the gentleness in Sylyana's. But Ashen Svlyana was invited by her godmother, who'd not seen her in four years, to come to London for the Season, Serenity felt safe in taking her place. After all, Sylyana would far rather remain in the Cotswolds near the man she loved.

Serenity had a lesson she must teach to a certain man in London--a man who had teased her when she was just sixteen--with a dare, a laugh, and a kiss.