It can be dangerous trying to send someone a message. Spoken words may be overheard, written correspondence may be intercepted, and body language may be seen. Did you ever wish you could think the words and they would be known?
Gareth turned and squinted uneasily over his shoulder. He could have sworn he heard a high pitched hiss. He turned back to continue through the dim underground passageway. It was then that he saw them. A pair of ruby red eyes, glowing faintly a few feet front of him. He had to look up to see them, and that is saying something, given Gareth’s generous stature. The strike was quick…he had no chance. The last thing he remembered were the eyes hovering above him and the fangs dripping venom. And was that a second set of eyes gleaming beneath the first…?
A slow, stupid creature that crawls onto people and latches onto them, often on feet, hands, and other extremities, numbing down the area and slowly feeding on it. It's easy to avoid while awake, but nearly impossible to remove once attached. Many an adventurer has been forced to hack off an arm or leg after waking with a Stoneleech wrapped around it. Sleep with one eye open! (This idea came from "Wizard's Rule")