Unmask Me If You Can by Shana Galen

This masked lord…
Lord Jasper, younger son of a marquess, suffered horrible burns fighting in the Napoleonic Wars. He wears a mask to hide his face from the stares and screams and finds comfort in the shadows. Jasper is an exceptional bounty hunter, so when a woman summons him to her deathbed and asks him to find her runaway daughter before she passes away, he doesn’t refuse. Jasper is close to his quarry when he’s knifed by an assailant. Imagine his surprise when he regains consciousness in the arms of the woman he seeks. Except she’s not at all what he expected.

Is not the only one with scars.
On a remote cliff on the sea, Olivia Carlisle calls her five-year-old son in from an approaching storm. But the little boy is more interested in the man he’s found on the trail to their hidden cottage. Olivia fears men and wants nothing more than to leave the injured man where she found him. But his knife wound is severe, and with the approaching storm, she knows leaving him will condemn him to death. As Jasper begins to heal, Olivia acknowledges her attraction to him, even though such emotions terrify her almost as much as returning to London. Jasper must convince her that her only chance at safety is to challenge the man who pursues her. They must travel into the lion’s den—he to face his vulnerability and she to face her worst fears.