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Bertie and his dog stumble across a notebook in code on the streets of World War II London. Is the notebook’s owner a spy? Can Bertie and his friends crack the code before something terrible happens?  
Ages 10+
Pages 272
Publisher Penguin Random House
Coming Nov 2021

Average Rating

83 Reviews

Featured Reviews

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A great story!

Review by Hudson

How I Became a Spy is a great story about WW11 in London. It is also a great book if you want to learn about WW11 and codes and ciphers. You should read this book if you liked the book The Bicycle Spy.

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How I Became a Spy by Jordan

Video review by Jordan

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How I Became a Spy by Jordan

Reader Reviews

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Good

Review by EmeraldFox

It was fine

Aug 25, 2023 09:45 AM
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One of the best books ever!!!

Review by bluekitty

This book takes place in world war two in London. During his civil defense messenger job, Bertie (the main character), bumps into a mysterious American girl that drops a notebook. He also finds a woman lying in an ally way. Who is this American girl and why was a woman lying in a cold dark ally way? Read this book to find out!!!

Aug 05, 2023 11:16 PM
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Abosoluetly incredible

Review by Snoopy2012

Awesome entertsaing, thrilling book.

Jun 10, 2023 05:47 PM
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Great Book!

Review by MillieMooB

I love this book so much. Their are a lot of codes. Also If you like learning about world war 2, then this is definitely a book you should read.

May 28, 2023 11:57 AM
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so good!!!!

Review by caracalwildcat

its so!!!!!!!!!!!!!!!!!!!!!!!!good i love this book

Mar 20, 2023 05:05 PM