The Secrets Beneath, #1

Anna Lakeman has spent her life working alongside her paleontologist father, drawing intricate sketches at every dig. When they find dinosaur bones near their home in Wyoming Territory, they're given the opportunity of a lifetime and are swiftly caught up in the competitive era of the Bone Wars. But after her father becomes sick and Joshua Ziegler, an old beau, returns for the summer, Anna's world is upended, and the practical, orderly life she has made for herself shatters.
Medical student Joshua Ziegler left his hometown to forget Anna, the one woman he truly loved and deeply hurt. But when he returns, time hasn't erased the feelings they've always had for each other. After Joshua's nephew goes missing--just like his sister did years ago--and Anna's job is threatened, tensions mount and dangerous secrets are unearthed.