Secret Love. Number 5 in series, Paperback

When a mysterious lady, her face hidden by a veil, begs Gabriel Cynster for his help, he cannot refuse her plea. For despite her disguise, Gabriel finds the woman alluring and he is powerless to deny her. But, he exacts payment as only a Cynster would demand: with each piece of information he uncovers, she must pay him - in the form of a kiss.