This is a good mystery story for older young kids. My niece and I read it together, and we enjoyed the story. I pre-read the book before I read it with her, and I admit, I had to "cheat" and look at the key in the back of the book to discover the answer to the mystery. I don't think that the clue...
In their dotage the Offspring will still be talking about their crazy mom having a signed first of this that she would read to them, but wouldn't let them touch until they washed their hands.