Related Clues:
- Put information into code in French vault
- Done with EC, potentially scramble message
- Make incomprehensible poem after being regularly crazy in the head
- Make cryptic once out of French
- Protect information in popularity contest sacrificing autopilots
- Put into cypher
- Represent in cipher
- Make secret, as a transmission
- Change characters in French poem about Charlie
- Don't let the secret recipe get out for starter of Emerald Fish caught in northeast
- Build something that can be cracked, say?
- Act as a blueprint for, as DNA for proteins
- Along with the letter, poem put in secret text
- Make into a cipher
- Encode