Who can protect a girl against her own guardian? Who can protect a guardian against his own heart? The was a libertine. The ladies of the London ton and the Versailles court loved him far too well for their own good and learned too late that he loved no one. To this handsome, bitter man, Sir John Lawley had, by mistake, assigned the guardianship of his beautiful young daughter. No man, save the Marquis, could look upon her silvery blonde innocence and deliberately plan her undoing. Any man, save the Marquis, would have seen that he, as much as she, would soon need a GUARDIAN OF THE HEART.