Nurthish
This is high and punctuated with high pitched chirps and pips of their own creation to communicate without their one-time Orrish masters understanding. It has no direct written communication, and only serves to communicate up to level 4. Characters without a 4 PER (hearing) suffer a -2 CS in using it/understanding it.
Nurth-Hand
Carved hand sign of the Nurth, done in relief but reversed for others to “read” by pressing their palms over. Little deep communication can come of this (maximum level 2), and it is easily hidden on rough walls and nearly invisible to non-Nurth.