Funny way of using strange places. Sadly I've had some issues as well with the whistle, I tried whistling from the portal, I tried looking at the poor traveller and filling up the exclamation mark gauge, but even when it was full, nothing happened :'(. I don't know if it's a problem with the web export via Godot, we had similar issues with another game we made with it. In any case, the concept was clever, the visuals and audio went well with the theme, you did a good job :)!