Blank air rune

The RuneScape Wiki also has an article on: rsw:Blank air rune

Blank air rune
Released							20 September 2006 (Update)
Members							Yes
Quest item							The Slug Menace
Properties
Tradeable							No
Equipable							No
Stackable							No
Destroy							Are you sure you wish to destroy this?
Examine							A blank air rune.
Values
Value							1 coin
Alchemy							Not alchemisable
Weight							0.01 kg
Advanced data
Item ID							9692

The blank air rune is a quest item used in The Slug Menace. It is made by using a chisel on a normal rune essence or pure essence after adding the missing Page 1, Page 2 and Page 3 back into Brother Maledict's holy book. During this process the player must also make a blank earth rune, a blank fire rune, a blank mind rune and a blank water rune.

Make more than one blank because you can fail while chiselling the shape of the rune, and/or binding it with the element of the rune.

When used on the air altar in the usual way it turns into a special air rune which is needed later in the quest.