Angel Unawares is one of the most heart-warming Christmas short-stories you are likely to come across in a long, long time. It is about a rich little girl, Angel, who walks away from her governess and gets lost going home. She finds herself in a "magic" garden, unexpectedly overhearing the trials and tribulations of a family that has fallen on hard times. The family's little girls find her and are pretty certain she's a fairy. But, the mother manages to figure out what hotel Angel is staying at, and returns her to her mother. How Angel finds a way to help the family is unique, creative, and well beyond her years. She is, indeed, an "Angel Unawares."

Charles Norris (C. N.) Williamson (1859–1920) was a British writer who was perhaps best known for his collaboration with his wife, Alice Muriel (A. M.) Williamson (1869 – 1933) an American-British novelist, in a number of novels. Alice said of him "Charlie Williamson could do anything in the world except write stories", and she added, "I can't do anything else." Charles wrote some novels on his own, as did Alice after her husband's death.