When Peter leads two Tinkerers to his family’s inn in Stargazers Valley, he imagines they’re like other astromancers, researchers from the Imperial College who study starstuff. The valley is a special place, where the magical aurora called the Skeins appear in the sky and starstuff falls in their wake, as thin and wispy as fluff from a seed pod. But starstuff is powerful, and astromancers are the only people allowed to handle it—a law enforced by the strict and stealthy Outbounder Task Force. When Peter discovers the Tinkerers have used starstuff to invent an incredible not-a-clock that can turn back time for a few minutes, he realizes it’s his chance to undo his mistakes: if he can go back and put away his new boots, he doesn’t need to add their destruction by falcons to his list of ten worst mistakes (#7: stepping on a star-eating newt). But while using the not-a-clock is easy, stopping using it is hard. And maybe not everything that feels like a mistake at the time actually is. Family, friendship, and budding self-confidence are at the heart of Caroline Carlson’s stellar fantasy.
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The Tinkerers
Author(s)
Publisher
Age Range
8+
Release Date
October 07, 2025
ISBN
978-1536230505
The astromancers in Peter’s star-touched village have an amazing device that nudges time—surely it wouldn’t hurt if Peter used it to fix a few mistakes? Cozy fantasy alight with wonder from the author of Wicked Marigold.
Editor review
1 review
The Tinkerers
(Updated: May 31, 2026)
Overall rating
5.0
Plot
5.0
Characters
5.0
Writing Style
5.0
Illustrations/Photos (if applicable)
N/A
What worked:
The first thing readers will notice is the book’s format. Part of the first chapter’s title is labeled “Exhibit 1”, so readers can imagine it’s part of some kind of investigation. Other chapters include sections of Peter’s narrative, star tales he tells to his brother Ollie, transcripts from interviews, surveillance videos or audio, transcripts of memos, and other sources. Peter’s character connects all of the chapters, so readers will be curious about why he’s part of an investigation. The early chapters hammer home that possessing star stuff is a dangerous, serious offense, and the substance is abundant in Stargazers Valley, where Peter lives. The author provides twists to the plot and surprises about characters as the story nears its climax.
The author creates an imaginative world where starstuff is the most valuable commodity. Astromancers from the Imperial College are researching the substance to discover beneficial uses for it. They are the only ones legally allowed to collect or use the material. Outbounder Task Force agents are always on the lookout for violators, so citizens avoid starstuff out of fear. Clambering is the major sport in the world, and it’s a form of competitive hiking and climbing. People talk about their favorite clamberers and purchase memorabilia about them. The hot gossip is about one of the world’s best clamberers disappearing from the public eye for months. The school even has a clambering class with frequent time trials. Peter’s attempts are often labeled DNF, did not finish, so it’s constantly a huge hit to his self-confidence.
The investigation can be viewed as a mystery with many suspects to choose from. The exact crime is slow to emerge, though readers know that Peter has used the not-a-clock illegally on more than one occasion. Peter is guiding two astromancers through the surrounding terrain, as they learn to clamber. He knows they’re doing more than clambering, and they don’t want anyone else to know what they’re up to. Theodoros is a longtime resident of the inn, but Peter’s not sure about what the man does for a living. He’s another astromancer, and he weekly sends starstuff that he’s collected to an unknown location. Then, there’s Joey Pancake. No one at the inn knows when he leaves or returns, and he’s the fastest clamberer that anyone’s seen. He keeps his identity concealed and doesn’t want to interact with anyone else. What is Joey Pancake up to?
What didn’t work as well:
Readers will need to be patient as the plot slowly unfolds. The book’s format presents clues in different forms, and they’re not always in chronological order. The variety of text forms takes getting used to, but it keeps the story from getting stagnant.
The final verdict:
The author creates an imaginative, thought-provoking story. Stargazers Valley is ruled by an overreaching empress, and the not-a-clock raises moral questions. I recommend this book to readers searching for a creative story that will make them think.
The first thing readers will notice is the book’s format. Part of the first chapter’s title is labeled “Exhibit 1”, so readers can imagine it’s part of some kind of investigation. Other chapters include sections of Peter’s narrative, star tales he tells to his brother Ollie, transcripts from interviews, surveillance videos or audio, transcripts of memos, and other sources. Peter’s character connects all of the chapters, so readers will be curious about why he’s part of an investigation. The early chapters hammer home that possessing star stuff is a dangerous, serious offense, and the substance is abundant in Stargazers Valley, where Peter lives. The author provides twists to the plot and surprises about characters as the story nears its climax.
The author creates an imaginative world where starstuff is the most valuable commodity. Astromancers from the Imperial College are researching the substance to discover beneficial uses for it. They are the only ones legally allowed to collect or use the material. Outbounder Task Force agents are always on the lookout for violators, so citizens avoid starstuff out of fear. Clambering is the major sport in the world, and it’s a form of competitive hiking and climbing. People talk about their favorite clamberers and purchase memorabilia about them. The hot gossip is about one of the world’s best clamberers disappearing from the public eye for months. The school even has a clambering class with frequent time trials. Peter’s attempts are often labeled DNF, did not finish, so it’s constantly a huge hit to his self-confidence.
The investigation can be viewed as a mystery with many suspects to choose from. The exact crime is slow to emerge, though readers know that Peter has used the not-a-clock illegally on more than one occasion. Peter is guiding two astromancers through the surrounding terrain, as they learn to clamber. He knows they’re doing more than clambering, and they don’t want anyone else to know what they’re up to. Theodoros is a longtime resident of the inn, but Peter’s not sure about what the man does for a living. He’s another astromancer, and he weekly sends starstuff that he’s collected to an unknown location. Then, there’s Joey Pancake. No one at the inn knows when he leaves or returns, and he’s the fastest clamberer that anyone’s seen. He keeps his identity concealed and doesn’t want to interact with anyone else. What is Joey Pancake up to?
What didn’t work as well:
Readers will need to be patient as the plot slowly unfolds. The book’s format presents clues in different forms, and they’re not always in chronological order. The variety of text forms takes getting used to, but it keeps the story from getting stagnant.
The final verdict:
The author creates an imaginative, thought-provoking story. Stargazers Valley is ruled by an overreaching empress, and the not-a-clock raises moral questions. I recommend this book to readers searching for a creative story that will make them think.
User reviews
1 review
Overall rating
5.0
Plot
5.0(1)
Characters
5.0(1)
Writing Style
5.0(1)
Illustrations/Photos (if applicable)
5.0(1)
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Charming, clever, and full of wonder
(Updated: May 31, 2026)
Overall rating
5.0
Plot
5.0
Characters
5.0
Writing Style
5.0
Illustrations/Photos (if applicable)
5.0
Our book club just finished The Tinkerers by Caroline Carlson and let me tell you we spent half the meeting laughing, half gasping, and the other half yes, math is optional in Stargazers Valley wishing we had our own not-a-clock to undo a few questionable life choices.
Caroline Carlson has created the coziest, quirkiest fantasy world, full of glowing auroras, mischievous starstuff, and enough chaotic energy to make even a time-loop feel charming. And at the heart of it all is Peter, a kid who has made a few mistakes. Okay, ten. And honestly? The list is iconic. Stepping on a star-eating newt? Boots eaten by falcons? I would simply pass away from embarrassment.
The moment Peter discovers that the two Tinkerers he escorted to his family’s inn aren’t harmless astromancers-in-training but rogue inventors with a very illegal time-bending gizmo well, we all knew things were about to get deliciously messy. And oh, they do.
Watching Peter use the not-a-clock to fix his mistakes and then watching those fixes spiral in increasingly hilarious and heartfelt ways turned out to be the perfect reminder of every book club member’s favorite truth: sometimes the things we wish we could erase are exactly the things that lead us where we need to be.
Between the outlaw astromancers, the glowing skeins of magical light, the swooping falcons rude, and Peter’s gentle journey toward confidence, this story is warm, whimsical, and quietly wise. It’s the kind of book that feels like sipping hot cocoa under a sky full of impossible stars.
✨Final verdict: Charming, clever, and full of wonder. Perfect for fans of cozy fantasy, found family feelings, and time-twisty hijinks that make you question every tiny moment you’ve ever labeled a mistake.
Caroline Carlson has created the coziest, quirkiest fantasy world, full of glowing auroras, mischievous starstuff, and enough chaotic energy to make even a time-loop feel charming. And at the heart of it all is Peter, a kid who has made a few mistakes. Okay, ten. And honestly? The list is iconic. Stepping on a star-eating newt? Boots eaten by falcons? I would simply pass away from embarrassment.
The moment Peter discovers that the two Tinkerers he escorted to his family’s inn aren’t harmless astromancers-in-training but rogue inventors with a very illegal time-bending gizmo well, we all knew things were about to get deliciously messy. And oh, they do.
Watching Peter use the not-a-clock to fix his mistakes and then watching those fixes spiral in increasingly hilarious and heartfelt ways turned out to be the perfect reminder of every book club member’s favorite truth: sometimes the things we wish we could erase are exactly the things that lead us where we need to be.
Between the outlaw astromancers, the glowing skeins of magical light, the swooping falcons rude, and Peter’s gentle journey toward confidence, this story is warm, whimsical, and quietly wise. It’s the kind of book that feels like sipping hot cocoa under a sky full of impossible stars.
✨Final verdict: Charming, clever, and full of wonder. Perfect for fans of cozy fantasy, found family feelings, and time-twisty hijinks that make you question every tiny moment you’ve ever labeled a mistake.



