Cass Henley is a hard-edged business woman with a scarred and painful past. She sees men simply as a way to take care of physical needs, and nothing more. When her company wins the bid to survey a large portion of the UK, she discovers a massive hill in southern Scotland where her knowledge tells her there should only be flat land. She is determined to explore the oddity alone, until AJ, a handsome National Geographic's writer, asks to join her team. When her bitchy attitude doesn't dissuade him, she finally agrees. Together they discover a buried castle along with scrolls that tell of the fall of a once great Kingdom. As the startling story of Kingdom Hill unfolds, Cass realizes, for the first time in her life, she is falling in love. But, when AJ reveals something that has ended every romantic relationship he's ever had, will she be like all the rest?