How can I script this sound so it plays correctly?

[palistov]

Nah OnLeave() is for when you exit the entire map. Just make a collide callback function that fades the sound out when you go a certain distance into the cave. And if they backtrack, make it start the sound again (put 3 or a similar number for the fade-in effect in the function) as long as alState is -1. You will also need to make the area cover the whole cave, or else they'll pass through the area and the sound will stop for a moment, the restart (because they exited the area but are still inside the cave)