Divinities in Twilight
Skitterati is a simple language that different castes of skitterax use to communicate. It’s very difficult for other mortals to learn – it uses a number of whistles, clicks and squeals that are hard to reproduce.
Very few mortals speak Skitterati; humanoids struggle to replicate it, and the skitterax really only use it to speak across castes. Most skitterax also speak Rikkaus and trade cant, and they find those languages much more useful and expressive.
Skitterati is clearly a divinely inspired tongue: It resists change and all skitterax are born with a complete understanding of it. However, its author remains a mystery. Sages debate the identity of its author, but the skitterax rarely concern themselves with the mystery.