The Secret Astronomers

Featured
 
3.8 (2)
 
0.0 (0)
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Age Range
13+
Release Date
November 04, 2025
ISBN
978-0593692677
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Two strangers. One forgotten astronomy textbook. A decades-old secret.

A fascinating, highly illustrated, epistolary novel perfect for fans of Rainbow Rowell and Alice Oseman, featuring designed doodled edges!

When a recent transfer student starts keeping her diary in the oldest textbook at the Green Bank High School library, the last thing she expects is to receive a response. Thus begins a sweeping tale of unlikely friendship and long-buried secrets between two secret pen pals at a rural West Virginia high school.

Copernicus is adrift and searching for answers after the sudden death of her mother, and leaving her cosmopolitan life in San Francisco behind. Kepler is a small-town girl with straight A's and big plans to be the first person in her family to go to college, despite her family's modest means. The two girls are so different from one another but united in their goal to solve a mystery that has riddled Green Bank for decades.

Meticulously hand-drawn by debut author Jessica Walker across the pages of an actual ancient astrophysics textbook, The Secret Astronomers is a story of friendship, family, crop circles, secret crushes, giant telescopes, life in Appalachia, and two girls discovering new ways to connect across any divide that separates them.

Editor reviews

2 reviews
Stunning Edges, Stumbled Ending
(Updated: June 03, 2026)
Overall rating
 
4.0
Plot
 
4.0
Characters
 
3.0
Writing Style
 
5.0
Illustrations/Photos (if applicable)
 
N/A
The Secret Astronomers by Jessica Walker is a visually stunning and uniquely structured novel.

The very first thing that captures your attention is the physical design of the book, featuring gorgeous, intricate decorative edges. This artistic touch immediately sets a whimsical, mysterious tone before you even flip to the first page.

The core concept of the narrative is incredibly clever and beautifully executed.
The story unfolds through anonymous notes, doodles, and messages left tucked inside the pages of an old, forgotten astronomy textbook. Unraveling the plot through these hidden artifacts makes the reading experience feel deeply personal and interactive, almost like the reader is uncovering a real-life treasure hunt. It is a brilliant breath of fresh air for readers who appreciate non-traditional formatting.

While the format is a massive success, the book wasn’t entirely perfect for me due to the main character, Copernicus. Despite her heavy emotional background, her characterization unfortunately fell a bit flat. At times, Copernicus comes across as judgmental and detached, making it difficult to fully connect with her or root for her journey.
Fortunately, the exceptional atmosphere and the engaging mystery do a lot of the heavy lifting to keep her chapters interesting, even when her personal attitude feels a bit grating.

The buildup of the book is fantastic and keeps the pages turning at a rapid pace, but the execution stumbles slightly as the book nears its conclusion. After such an innovative setup, the ending felt a bit "eh." The resolution didn't quite live up to the high stakes and brilliant atmosphere established early on, leaving the final payoff feeling a bit rushed and anticlimactic.

Despite a slightly weak finale and a hard-to-love protagonist in Copernicus, The Secret Astronomers is an incredibly creative read. It is well worth picking up for the sheer artistry of the book design and the cleverness of its storytelling format, even if the ending doesn't completely stick the landing.
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Takes Junk Journals and Secret Notes to the Next Level
(Updated: June 03, 2026)
Overall rating
 
3.5
Plot
 
3.0
Characters
 
4.0
Writing Style
 
3.0
Illustrations/Photos (if applicable)
 
4.0
A truly one-of-a-kind story, told through furtive post-its and doodles in a colorful format sure to appeal to junk journalers and paper note gremlins everywhere. This is just the kind of pseudo-intellectual rabbit hole that young scholars (including past me) love to go down, with one series of innocuous notes spiraling into an obsessive, almost daily conversation about anything and everything between two teen girls at the same school but with very different lives. The format is super unique, mostly consisting of notes and doodles pasted over pages of an astronomy textbook. (I'm definitely considering borrowing this idea to penpal with a friend...)

The characters wear their opinions on their sleeves, with pointed remarks about the seemingly backwater rural environment, hot topic issues, and even a certain inflammatory president.
These opinions may or may not reflect those of the author (and I'm not here to argue where the line is between fact and opinion on these subjects), but in the context of the story they're delivered with that teen certainty that one is 100% correct. This makes it difficult to identify when something is meant genuinely or more as a satirical critique, and it can come across as abrasive if the reader does not agree with the viewpoint being explained. Though I applaud the narrative for tackling so many issues head on, I wish there were room for more discussions. However, when Copernicus raises a topic (rather strongly, as is her way), Kepler tends to go along with it, so there's less discussion and more of following a trail along the same thought.

But it's not all philosophical. In between the central mystery (which takes back seat to the banter, honestly) and comments about daily life, we're introduced to the day-to-day of two high schoolers, with school trouble, secret crushes, angst over the future, and all. There is some swearing, but overall the content is more blunt than crass.

Pick this up for the thrill of uncovering unexpected friendship and finding freedom in sharing ideas.
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