Level 5 · Mysteries & Monsters

Mission 413

Flag Signals: Invent a Spy Banner Code

Badge: Signal Spy

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Design banners for 8 secret words and fly a message from a signal tower.

Spies once sent messages with flags across whole valleys. Invent a banner code only your family can read.

  • New skill Designing banners on a loom
  • Level 5 · Mysteries & Monsters
  • Difficulty Intermediate
  • Mode Survival
  • Time 40–50 min
  • Ages 13+

What you’ll build

Invent a spy flag code. Pick eight words a detective might need, craft a loom and design a bold banner for each one, then draw them all in a secret code book. Build a signal tower somewhere high and fly a message for a family member to read from far away.

Finish line: Your signal tower flies a three-banner message, and your code book holds all eight banners.

Bonus challenge: Add 2 banners that mean 'ignore the next flag' and 'read backwards'. Send a tricky message and see who cracks it first.

You’ll need

  • Wool
  • Sticks
  • String and planks for a loom
  • Dyes
  • A spyglass (optional)
  • A family member to read it

You choose

  • My signal tower's name
  • My 8 code words
  • The message I'll send

Stuck?

  • A banner is 6 wool and a stick. Put a banner and a dye in the loom to add a pattern.
  • Banners hard to tell apart from far away? Use bold, high-contrast colours and simple patterns.
  • Build the tower in daylight and light the top so mobs don't spawn on the deck.

For grown-ups

Get this mission

This mission is in Mission Pack 41 (Level 5: Mysteries & Monsters). Its printables arrive in the store soon. We release about one level a month.

Print one mission at a time. You never need to print everything.

Played on Minecraft Bedrock on iPad. Buttons can differ on other devices and versions.