Glides are characters in the book The Maze Game, by Diana Reed Slattery, see Glide, An Interactive Exploration of Visual Language. Glides communicate using a language based on gestures and shapes, they send each other messages and pass down stories by skating on ice, dancing and other means their keepers don’t understand. Here are the elements:
This is how they tell a story: Ultra syntax
The Maze Game by Diana Reed Slattery, Deep Listening Publications.