Paying homage to our fondness of brain-teasers, every month we post a new challenge created by the Forensic Technology team, focusing on logical, analytical and coding problems.

For this month's challenge you need to put your spy hat on and decrypt a message.

The first step is to revisit the Challenge #1 blog. Shameless, we know.

Using the answer to the number of prime numbers that have digits that sum to 13, can you find the key word in the post? (Clue: we have decided that two or more words that are hyphenated should only be counted as one).

Found it? Great! The encrypted message is below, with a handy matrix that can be used to crack the code (and give you inspiration)! You will need to use the key word to decipher the original meaning.

We hope you 'Blaise' through the rest of this challenge!

Hint: Capitals are important and should be preserved.

Once you have the decrypted message, the dots and dashes can help you reach the final goal.

If you crack the code, then post the first letter of each word in the title of what you find in the comments below.

We'll be posting the solution next month, along with Challenge #3.

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