Book ten. If your child has got this far, they are not reading these for the novelty any more, and you already know whether the next one is a yes.
Here is what is inside this one. Zoey's friend Sophie has moved house, and there is a hidden room in it. Zoey hears something in that room that Sophie does not hear. There are creatures in there, something is making them ill, and nobody can name it. Then the middle of the book happens, which is Zoey trying things that do not work.
The science it actually teaches
Two ideas, and they both live at the unglamorous end of the work. The first is the difference between a symptom and a cause, which is the whole of diagnosis and is sitting right there in the title. A sneeze is not an illness. A sneeze is a thing a body does about an illness. You can stop the sneezing and have changed nothing underneath, and you can fix the cause and still hear sneezing for another day. A seven year old can hold that distinction. They will use it on themselves the next time they are ill. Almost nothing written at that reading level bothers to make it.
The second is failure that runs long enough to feel like failure. Zoey tries, and it does not work, and she tries again. That is not a low point engineered to make the ending feel better. That is what the work is. Every treatment that fails takes a possible cause off the list, and a book that lets a child sit in the not-knowing for most of its length is teaching patience as a technical skill rather than as a virtue.
There is a third thing, and I think it is the sharpest thing in the book, and it looks almost accidental. Sophie cannot hear what Zoey hears. Two people are standing in the same room and only one of them has the observation. Getting from I noticed something to we agree it is there is the oldest problem in the whole of science, and a child who has felt it once at seven will recognize it at seventeen. That is why this one belongs on the Stealth Science shelf even though its creature is a gnome.
The child it lands with
This is for the child who already has nine of these on a shelf and would like the tenth, and I am not going to pretend otherwise. It is a book ten. It behaves like one.
Outside that, one child suits it regardless of where they came in: the one who gives up. Not the lazy one. The one who tries a thing, fails, and reads that as a verdict on themselves. Watching a character they like fail repeatedly and keep going is a slow argument, and slow arguments are the only kind that ever land on that particular child.
One place to stop and talk
There are two stops in this one and they are both worth taking.
The first is early, when Zoey hears something Sophie cannot. The question is how you would prove to somebody else that you heard a thing when they did not. Most children go straight to make them listen harder, which is the right instinct and is almost never enough on its own.
The second is after the second failed attempt, wherever that falls in your reading. The question is not what should she try next. The question is what she knows now that she did not know before she tried, and that has a real answer rather than a consolation prize. If your child can say the failed try ruled something out, they have got the thing this book is actually for, and you can shut it there and count the evening a win.
What to know going in
The honest caution is the number on the spine. This is book ten of a series with a running cast and a family secret, and a child dropped in here will meet a friendship that already has history and will feel the gap. It still makes sense on its own. It is just a smaller book than it is for a reader who arrived in order.
The content is mild. An illness that nobody can fix runs for most of the length, and for a five or six year old who worries about being unwell, that stretch of nothing working is the part to keep an eye on. It is worry, not fright, and there is no violence in it.
One practical thing. Prices move across this series. This one is $6.99 where some of the earlier books sit at $5.99, which matters if you are budgeting for a run of them rather than a single copy.
Where to get it
It is $6.99 at Gnomes and Sneezes: Zoey and Sassafras #10. This is not the book to test the series with and I would not hand it to a child who has never met Zoey. It is the one you buy when a child has done nine and earned the tenth, and at that point you are not really buying a science book any more. You are buying the next one, which is a different reason and a perfectly good one.
If your child liked this one
Books we have written about that sit close to this one, by reading level and by subject.
Caterflies and Ice: The Book Where Zoey Gets It Wrong
Caterflies and Ice: Zoey and Sassafras #4 by Asia Citro
Grade 1 to 4
5-Minute Ada Twist Stories: What This Book Is For
5-Minute Ada Twist, Scientist Stories by Gabrielle Meyer
Grade 1 to 4
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
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.
