---
product_id: 5391653
title: "The 100-Year-Old Secret: The Sherlock Files Book One"
price: "€ 29.66"
currency: EUR
in_stock: true
reviews_count: 10
url: https://www.desertcart.gr/products/5391653-the-100-year-old-secret-the-sherlock-files-book-one
store_origin: GR
region: Greece
---

# The 100-Year-Old Secret: The Sherlock Files Book One

**Price:** € 29.66
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** The 100-Year-Old Secret: The Sherlock Files Book One
- **How much does it cost?** € 29.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/5391653-the-100-year-old-secret-the-sherlock-files-book-one)

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- Customers looking for quality international products

## Why This Product

- Free international shipping included
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## Description

The 100-Year-Old Secret: The Sherlock Files Book One [Barrett, Tracy] on desertcart.com. *FREE* shipping on qualifying offers. The 100-Year-Old Secret: The Sherlock Files Book One

Review: A Hit with My 11-Year-Old! - This book was a big hit with my 11-year-old! They loved the engaging mystery and the connection to Sherlock Holmes, and immediately asked for more books in the series. The story is well-written and perfect for young readers who enjoy solving puzzles and following adventurous plots. Highly recommend for kids who love mysteries and a touch of classic detective flair!
Review: An Adventurous Whodunit - This fun and suspenseful whodunit is sure to delight readers! When American twins Xena and Xander move to London, they learn they're direct descendants of the great detective Sherlock Holmes. After they're given his casebook of unresolved cases - complete with clues - the twins enter a surprising journey of mystery and intrigue that take them all over London and its suburbs. Sherlock Holmes fans will appreciate how author Tracy Barrett masterfully weaves bits and pieces from the original Sherlock Holmes stories by Sir Arthur Conan Doyle into her book. I couldn't put this page-turner down! Complete with a quaint English village, Henry the Eighth's mansion, boarding schools, and numerous art galleries, this book will please thrill-seeking readers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #158,497 in Books ( See Top 100 in Books ) #713 in Children's Siblings Books (Books) #1,349 in Children's Mystery, Detective, & Spy #4,499 in Children's Action & Adventure Books (Books) |
| Book 1 of 1  | Sherlock Files |
| Customer Reviews | 4.4 4.4 out of 5 stars (152) |
| Dimensions  | 5.25 x 0.45 x 7.6 inches |
| Edition  | First Edition |
| Grade level  | 3 - 2 |
| ISBN-10  | 031260212X |
| ISBN-13  | 978-0312602123 |
| Item Weight  | 5.1 ounces |
| Language  | English |
| Print length  | 176 pages |
| Publication date  | March 30, 2010 |
| Publisher  | Square Fish |
| Reading age  | 8 - 12 years |

## Images

![The 100-Year-Old Secret: The Sherlock Files Book One - Image 1](https://m.media-amazon.com/images/I/81TlAJUNYlL.jpg)
![The 100-Year-Old Secret: The Sherlock Files Book One - Image 2](https://m.media-amazon.com/images/I/81QyAVJ297L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Hit with My 11-Year-Old!
*by E***S on December 5, 2024*

This book was a big hit with my 11-year-old! They loved the engaging mystery and the connection to Sherlock Holmes, and immediately asked for more books in the series. The story is well-written and perfect for young readers who enjoy solving puzzles and following adventurous plots. Highly recommend for kids who love mysteries and a touch of classic detective flair!

### ⭐⭐⭐⭐⭐ An Adventurous Whodunit
*by G***R on June 21, 2008*

This fun and suspenseful whodunit is sure to delight readers! When American twins Xena and Xander move to London, they learn they're direct descendants of the great detective Sherlock Holmes. After they're given his casebook of unresolved cases - complete with clues - the twins enter a surprising journey of mystery and intrigue that take them all over London and its suburbs. Sherlock Holmes fans will appreciate how author Tracy Barrett masterfully weaves bits and pieces from the original Sherlock Holmes stories by Sir Arthur Conan Doyle into her book. I couldn't put this page-turner down! Complete with a quaint English village, Henry the Eighth's mansion, boarding schools, and numerous art galleries, this book will please thrill-seeking readers.

### ⭐⭐⭐⭐⭐ for all ages
*by H***S on February 6, 2018*

Fun read for any age. My daughter was thrilled with this story and her book report earned her high marks. I was impressed with the author's words invoking my imagination.

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-02*