Message in a bottle is an item found on the western shore of the third island in The Islands That Once Were Turtles, underneath the rocks. It can be investigated to receive a treasure map, which leads players to Quis-land.
This message in a bottle was last visible 6 days ago on 4 December. It will be visible again in 3 days on 13 December. (wrong?) Once a message in a bottle is found and when a player has walked near its spawn location when it was visible it will always be visible, unless the message in the bottle or its treasure map is in the player's bank or inventory.