Lost and Found was removed from Old School RuneScape after an update.
Lost and Found is a random event in which players may be sent to a certain small room, called the Abyssal Plane, at any time. The player says "Uh? Help!" and is teleported there, getting a message that says, "You have slipped through to the Abyssal plane!" Four levers are found on the walls; one of which will differ in some way, typically in position, the shape, or colour of the end.