Can you crack the codes in The Joshua Files?

Dark-ParallelOut this month is an exciting new book from The Joshua Files series written by MG Harris, called Dark Parallel.

The Joshua Files is a great series that follows the adventures of Joshua Garcia involving code cracking, time travelling and exciting mysteries!

In The Joshua Files Josh often comes up against a puzzle, a code to be deciphered. It might be an ancient Mayan manuscript. Or perhaps a secret message sent from a mysterious character known only as ‘Arcadio’.

So we thought we’d give you the chance to see whether you can match up to Josh’s skills by cracking some codes.

All you need to do is click here to download a code-cracking worksheet.

Once you reckon you’ve worked out the secret messages, using the hints on the worksheet, check out the videos below to see if you’re solution is correct!

Good luck!

The Joshua Files are written by MG Harris and published by Scholastic. Visit to find out more about the series.

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Code #1 from Invisible City

Code #2 from Ice Shock

Code #3 from Zero Moment