Angels walking

"From #1 New York Times bestselling author Karen Kingsbury comes the third novel in an unforgettable series about divine intervention and the trials and triumphs of life for a group of friends. Despite needing a heart transplant and against the advice of her doctor, Mary Catherine moves to Uganda to work at a new orphanage. Whatever time she has left, Mary Catherine wants to spend it helping children--especially since there will be no children of...