Ransom by Julie Garwood
As a child, Gillian lost her sister and saw her father killed by Baron Alford, a man driven by greed, determined to obtain a jewelled box belonging to King John. Years later, while searching for her sister, Gillian enlists the aid of Scottish Lairds Ramsey Sinclair and Brodick Buchanan, as well as a new friend, Brigid Kirk Connel. The four unite to face the terrifying and powerful baron who has stolen Gillian's home. But in the process of regaining her heritage, will Gillian lose her heart?