Cryptic Flags (Formorian or Killian)
Social
Basic
90 hours
Requires: Semaphore and either Speak Anglan or Speak Killian (and the ability to wave four flags)
Both the Formourian and Killian navies have developed their own secret codes for semaphore. Communications officers not only use unique signs and combinations, but repurpose standard signs to further encrypt messages. The Formourian navy further complicates things by having non-standard flags, and by changing their encoding system once per decade.