The Element of Love (The Lumber Baron's Daughters, #1)

With their sharp engineering minds, Laura Stiles and her two sisters have been able to deal with their mother's unfortunate choice in husband, until they discover his plans to marry each of them off to his lecherous friends. Now they must run away--far and fast--to find better matches to legally claim their portion of their father's lumber dynasty and seize control from their stepfather.

When Laura befriends a mission group heading to serve the poor in California during their escape, she quickly volunteers herself and her sisters to join their efforts. Despite the settlement being in miserable condition, the sisters are excited by the opportunity to put their skills to good use. Laura also sees potential in Caleb, the local minister, to help with gaining her inheritance. But when secrets buried in Caleb's past and in the land around them come to light, it'll take all the smarts the sisters have to keep trouble at bay.