Continuing with the adventures of Old West heroine Breanna Baylor, book four of the Angel of Mercy series traces the growing friendship between Breanna and fellow certified medical nurse Stefanie Andrews. When she arrives in Denver to work at the new Mile High Hospital, the lonely young Stephanie is nursing deep wounds from her childhood, caused by the death of her mother and abandonment by her father. Yet Denver holds new beginnings for the woman of faith as she faces danger, builds touching new friendships, confronts the father who once left her, meets the man of her dreams, and miraculously rediscovers the mother she believed to be lost in the heart-warming story of Love's Enduring Promise. When Dr. Matthew Carroll and his wife Dottie relocate to Denver, Brenda Baylor happily welcomes her sister's family to her hometown. She also befriends Stefanie Andrews, a lonely young nurse who comes to help the Carrolls and Brenda establish Denver's new Mile High Hospital. Although Stefanie enjoys her inclusion into the close-knit family, she continues to nurse emotional wounds from her childhood. Yet Denver holds new beginnings, and danger, for the young woman of faith as she confronts the father who once left her and meets a brave hero who just might be the man of her dreams.