15 Minutes Season 4 Episode 12 NINJA TRUTH Episode 15: Ninja Communication 2021
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Since ninja were engaged in espionage, they had to gather information and accurately convey it without anyone knowing. Typical means of information transmission included smoke signals, a cipher using knots in a rope, and special methods of transporting secret messages. But in the second half of the episode, we'll look at their ultimate method of concealing information: invisible ink! Find out how they did this, and follow Chris as he makes his own secret message with ninja techniques.
- Released: 2021-11-10
- Runtime: 15 minutes
- Genre: Documentary
- Stars:
- Director:
