The Christmas Tree Treasure Hunt by Fay Lamb and Various Authors is one woman’s journey to discover family and Christmas. I love journey stories, especially ones concerning the heart. You’ll enjoy this book.
The Christmas Tree Treasure Hunt
Grace takes delivery of a package and her life is turned upside down by nine sealed mystery envelopes from her late grandmother. Grammie’s instructions require Grace to take the journey of her lifetime, not only to far off places, but also into the deepest parts of her heart. As she follows the trail laid out for her and uncovers her family’s darkest secrets, Grace is forced to confront the loss and betrayal that has scarred her past and seek the greatest Christmas Treasure of all.
Jennifer Hallmark 
The treasure hunt idea sounds like fun.
I really liked this story 🙂