Taming Lily (MacLeods of Skye #4)
J.R. Salisbury

Tobias Campbell, Duke of Aberdeen is unsure what to make of the filthy stowaway found hiding on his rail car. Part of the well crafted tale she tells rings true, but Tobias is certain the chit has secrets. Secrets he intends to uncover.
In spite of being betrothed to another, the usually meticulously organized duke finds himself extending his protection to his houseguest. The last thing he expected to was to fall madly in love with the beautiful and mysterious lady.
Desperate times call for desperate measures, and Lily and Tobias aren't the only ones caught up in this battle of strong wills and love.