Pets are going missing in Blue River Creek, Sofia's and Iggy's among them. The town has already worked out that there is a thief. Ada Twist will not sign up to that, because nobody has checked.
This is book five of the Questioneers chapter books, and the shortest true description of it is that the detective work gets done on purpose and by name.
The science it actually teaches
Most books on this shelf teach a method by burying it in a story and hoping your child picks it up sideways. This one does the opposite. It says hypothesis, it says data, it says experiment, and it walks through them in order. Whether that is the best thing about the book or the most irritating depends entirely on the child you hand it to.
Start with the part that is genuinely hard. The story opens with a conclusion already reached. There is a thief, everybody says so, and the missing animals look like proof of it. Ada's position is that a thing which looks like proof is not proof until you have worked out whether something else could have produced exactly the same result. That is a difficult idea. It is the one adults fail at on the internet daily, and here it is inside a chapter book with a dog on the cover.
Then a hypothesis, which the book is careful to present as a guess you can check rather than a guess you happen to like. The test is not whether it feels right. The test is whether there is something you could go and do that would show it was wrong. A seven-year-old can hold that if somebody says it out loud, and this book says it out loud.
Then data, which here means going and getting facts about the animals that vanished instead of trading theories at a kitchen table. That step is boring in real life, the book does not pretend otherwise, and I count that in its favour. Most fiction skips straight from the hunch to the reveal, and skipping the boring middle is exactly how a child ends up thinking science is about being clever.
And then the pressure, which is the piece I did not expect to find in a book this short. Sofia and Iggy get convinced early, and they are Ada's friends. Holding off on a conclusion is easy on your own and hard in a room where the people you like have already decided. The book puts that on the page without stopping to make a speech about it.
What it does not carry is any content science. No animal behaviour, no chemistry, nothing your child can repeat afterwards as a fact about the world. It is a book about how to go at a question. Buy it expecting anything else and you will be flat by chapter three.
The child it lands with
The target here is narrow: the child who announces the answer before the question has finished, reading alone, somewhere around seven to ten. The book never tells them to stop being certain. It shows them a girl their own age getting further by waiting, which is the only argument that has ever worked on a confident child.
Also the one who has heard the phrase scientific method at a co-op table and could not tell you what it means. This is the cheapest fix for that I know of, and it goes down in an afternoon.
One place to stop and talk
There is a stretch before anybody has any facts where the whole town is sure and Ada is not. Stop there, before the answer turns up. Ask what would have to be true for the thief idea to be right, then ask what else could make pets go missing in a town. Write both lists on paper. Read the rest, then check the lists against what actually happened. Ten minutes of work, and it teaches the shape of the method better than the book manages alone, because your child made the predictions instead of watching somebody else make them.
What to know going in
The premise is missing pets, and if there is a child in your house who loves a dog, that lands harder than the cover suggests. Nothing gruesome happens and the tone stays light the whole way through. For a certain sensitive seven-year-old, the idea that a family animal can simply be gone one morning is still the thing that follows them to bed. You know which child you have.
Then the reading level. A four-year-old can sit through the Ada Twist picture book. A four-year-old cannot get through this, and the shared name on the cover hides that from a parent buying quickly. The store bands it 1 to 4, and at the bottom of that band the honest instruction is read it together.
It is also book five. It reads standalone and you will not be lost, but the friends around Ada are assumed rather than introduced, so a child meeting them here meets them fast.
Where to get it
It is $7.99 at Ada Twist and the Disappearing Dogs. Buy it for the child who is about to be handed a science fair sheet and told to state a hypothesis, because this is the clearest cheap explanation of what those words mean that I have found anywhere in fiction. Buy it later if your child is still being read to, and buy the picture books first in that case. Most of the Stealth Science shelf hides the method inside the story on purpose. This one says it out loud, which makes it the odd book on the shelf and the right one for a child who needs the words as well as the habit.
If your child liked this one
Books we have written about that sit close to this one, by reading level and by subject.
Aaron Slater and the Sneaky Snake: Who Gets to Decide
Aaron Slater and the Sneaky Snake: The Questioneers Chapter Book #6 by Andrea Beaty
Grade 1 to 4
Iggy Peck and the Mysterious Mansion: Reading a House
Iggy Peck and the Mysterious Mansion: The Questioneers Chapter Book #3 by Andrea Beaty
Grade 1 to 4
Caterflies and Ice: The Book Where Zoey Gets It Wrong
Caterflies and Ice: Zoey and Sassafras #4 by Asia Citro
Grade 1 to 4
Dragons and Marshmallows: The Science and the Catch
Dragons and Marshmallows: Zoey and Sassafras #1 by Asia Citro
Grade 1 to 4
Browse every book we have written about by age, by kind of book and by subject: Find the right book for your child. Or see the whole Stealth Science shelf.
