I like fairy tales. I also like fairy tales re-imagined, but not all of them. For instance, I hated Gregory McGuire’s “Wicked.” I thought it disrespected Baum’s innocent vision of Oz, though obviously I am in the minority, and Gregory McGuire is now a rich man. On the other hand, I loved McGuire’s “Lost,” which skillfully weaves together Dickens’ “A Christmas Carol,” shades of Jack the Ripper, and some other goodies into a gripping ghost story.

“My Grandmother Asked Me To Tell You She’s Sorry,” by Fredrik Backman, is a rare jewel. It is a fairy story that combines several related fairy stories and reveals the truth behind them. And it’s completely original, in that it doesn’t rehash older source material. (Not that I’m saying it’s wrong to rehash source material. What would we do without it?)

Elsa, our protagonist, is seven years old and precocious, but I am happy to say she is precocious in a believable, seven-year-old way. Her grandmother is a character, to put it mildly. Among other things, Elsa’s grandmother has taught her a secret language and told her stories of the several kingdoms of the Land of Almost-Awake. Her grandmother is her super-hero, and Elsa adores her. In fact, Granny is Elsa’s only friend, because Elsa doesn’t think much of the kids at school who don’t understand great literature. Like “Harry Potter.” And Marvel Comics.

Elsa, her mother, her grandmother, and her stepfather live in a kind of a boarding house. Some of the tenants are very much in full view, like Britt-Marie, who bosses everyone around about signs in the laundry room and strollers in the stairwell. Others are never seen, including the mysterious “Our Friend,” as Granny refers to him. Elsa’s mother works all the time, her remarried father is not a strong presence, and she resents her stepfather. Her grandmother is her rock.

And then Granny dies. But before she does, she asks Elsa to deliver a letter. Elsa does, and sets off a chain of events that reveal the true nature both of Granny’s stories and of the people in Elsa’s life. Bit by bit, she comes to understand who these people are and how they came to be who they are. She also discovers her grandmother’s hidden connection to every soul in the boarding house.

Elsa eventually discovers a mother who loves her unconditionally, a stepfather who’s actually okay, and a father who turns out to be important after all. She even makes a friend. She learns some things about adults that in the end, she knows she just has to forgive.

While the protagonist of “My Grandmother Asked Me To Tell You She’s Sorry” is a child, this is not a children’s story. The heartache and sadness are all-too-poignant, and the adults’ stories are, well, adult. The story is about a child finding her way through the complexities of life by relying on herself and her memories of her grandmother. She learns the truth behind the tales, and adult truth is sometimes difficult and scary.

Fortunately, there is enough humor in Elsa’s take on things that the book never becomes dreary—and I was pleased that the humor never condescended, even though the lead character is a child.

I had a hard time deciding whether to categorize “My Grandmother Asked Me To Tell You She’s Sorry” as a fantasy or mainstream, even though the only fantasy elements in the story are Granny’s stories. It’s a fairy tale, but although it has a happy ending, it is a realistic ending. Granny doesn’t come back to life. Britt-Marie was never a princess. “Our Friend” is not really a wurse from the Land of Almost-Awake. And yet, the fantasy carries the story. Read it and decide for yourself.