I'm not sure how I feel about this book, which I just found on our shelf, having no idea when or how we acquired it. I'm perhaps rating it a bit high, but I did enjoy it. It's quite funny in parts, quirky thoughout, and full of food for thought.
It starts when Melissa, Amanda, and Pee Wee's usual babysitter "came down with a mild case of bubonic plague and called tearfully to say she didn't want to spread the buboes around." So her parents (who are going to Paris for a week) are forced to call on Aunt Sally, whom they have never met and their father never talks about.
Aunt Polly takes good care of them, gets them to happily eat green beans, sews amazing Hallowe'en costumes, and tells them preposterous stories. It's not at all clear how much of her stories are true (I can't believe her family chewed on sticks after supper, for fiber), but they are certainly interesting and full of odd insights. She insists on calling six-year-old Pee Wee "Frank", which is his actual name. He appreciates the respect. But she makes him go to bed earlier than the girls (who are 8 and 10) and doesn't tell him any stories about trolls.
Here's a sample insight, "Now that it's too late, I wish I had asked Grandma Evelyn what the deep dark secret was.... So let that be a lesson to you, ask your parents all these questions before it's too late...." I certainly wish I had asked my parents more questions.
A bigger insight is that "some acts alter everything forever" - in a quite sad story (involving trolls) which gives us a clue why her brother, the children's father, has almost no relationship with her.
Aunt Sally does not claim to have seen the trolls herself. She has heard a lot about them from her Uncle Louie, though, and she appears to believe in them. When the girls get scared and ask if the doors are locked, she tells them, "There are no locks to keep out trolls. But don't worry, the trolls don't come to you. It's your own darkness that leads you to the trolls."
I have a problem with the story of the Fat Little Mean Girl. Even the chapter title is unkind to fat people! If I were reading the book to children, I might leave this chapter out, or just leave out the word fat, though it gets a bit more complicated than that in one or two places. The chapter also involves Wiccans, but does not portray them in a very attractive way and I wouldn't mind reading that part to kids, despite my Christian faith. (It doesn't portray them as Satan-worshippers either, but plausibly, as fairly ordinary eccentrics, one of whom is mean.) If I gave the book to a child, I would talk to them about calling people fat and about Wiccans.
With those stipulations, I recommend this as a read-aloud or for kids 8 and up to read themselves. If your kid is prone to night-time fears you might want to wait a year or two longer.