Fire rune (The Slug Menace)

A Fire rune is a special type of fire rune used during The Slug Menace. It is made by using a blank fire rune on an Fire 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 mind rune and a special water rune. Unlike normal fire runes, this cannot be used to cast a spell.