Shiver Speak

This is the language of the Shivering Sprogles, a chattery sort of lizard that lives within the Forest of Pain. It's a surprisingly coherent languages that doesn't involve a lot of quavering or modulation. The Sprogles use it to soothe those around them. Sometimes this is a hunting response to lull prey into a false sense of security. Other times it's to calm down a lost child and guide them safely out.
The words are not difficult to learn, as the language consists of barely 3000. They are not overly concerned with verb tenses. The sound of it is surprisingly smooth and melodic.