Black Phoenix Series by Lynn Kerstan

The invitations have gone out, offering a select few the chance to live in Paradise... One invitation is accepted by Jarrett, Lord Dering, a family outcast who lives by his own rules, the other by Kate Falshaw, a hot-tempered actress on the run from a scandalous past. The exclusive resort they travel to promises to fulfill every desire, but beneath the glittering surface deadly games are in play.

In the second novel of Kerstan's Regency-era Black Phoenix trilogy, Colonel Lord Marcus Cardell is charged by the fellowship of the Black Phoenix to track a killer. To do so, he must ally himself with Lady Eve Halliday, society's most fashionable lady. Original.