Water rune (The Slug Menace)

A Water rune is a special type of water rune used during the Slug Menace quest. It is made by using a blank water rune on an Water altar in the normal way and is used to unlock a mysterious door in the newly discovered shrine beneath Witchaven. In order to unlock the door the player must also have made a special air rune, a special earth rune, a special fire rune, and a special mind rune.