Sir Arthur Conan Doyle is in danger. But why—and who stands to gain from his disappearance?


Aria & Liam The Baker Street Mystery

When Doyle’s daughter seeks Aria and Liam’s help, they expect a simple mystery. Instead, they uncover a tangled web of secrets. Just as Doyle announces Sherlock Holmes’ return, he disappears without a trace. Was this the act of a jealous rival, a secret society determined to silence him, or someone hiding in plain sight within London’s high society?

As Aria and Liam follow the clues, each discovery raises more questions than it answers. Deception lurks around every corner, and the truth may not be what it seems. To crack the case, they’ll need to think like the great detective himself—but even the sharpest minds can be misled.

Can Aria and Liam solve the mystery before it’s too late? Or will they become trapped in a scheme even Sherlock Holmes couldn’t predict?

Blending mystery, adventure, and history, The Baker Street Mystery is perfect for young readers aged 8 to 12 who love detective stories and unexpected twists.







Book Details

Author: Coline Monsarrat

Publisher: Apicem Publishing

Series: Aria & Liam

Age range: 8 to 12 years old

Genre: middle-grade, adventure, historical, detective

Time period: England (1900’s)

ISBN: 978-1-959814-20-7 

Format: paperback and e-book

Aria & Liam The Baker Street Mystery
Liam profile picture from the middle-grade book series "Aria & Liam"
Aria profile picture from the middle-grade book series "Aria & Liam"

❝Wow, what an adventure! I have to admit, I used to scratch my head at Aria’s fascination with Sir Arthur Conan Doyle. I mean, sure, he wrote some great stories, but why all the fuss, right? But guess what this wild ride taught me? You don’t need a crown or a fancy title to shake up the world. Nope, whether you’re scribbling stories like Doyle or doing something totally out there, you’ve got the power to make a real change.

So, listen up, fellow adventurers: Pursue those passions like there’s no tomorrow! Who knows? You might just end up turning the world on its head.❞

❝Wow, talk about an adrenaline rush! I honestly thought we wouldn’t make it back. But amidst all the thrills, you know what truly blew my mind? Getting an insider’s look into the book-writing process. Meeting one of my favorite authors was surreal! Being dyslexic, I used to believe that becoming an author was just a wild dream. But this incredible adventure flipped the script entirely. It showed me that every difference is like a superpower in disguise, complete with its own set of perks and pitfalls. The real quest? Figuring out how to harness those perks and confront those pitfalls head-on.❞

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Coline Monsarrat showing Aria and Liam drawing

Coline Monsarrat grew up believing books were gateways to magical realms where anything was possible. Her love for history and her endless curiosity shaped her belief that life is an adventure waiting to be written—and we are the authors of our own stories.


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