The Great Orb Project minigame follows the premise that, when the Runecrafting altars are used, some of the energy in the transfer to the rune essence is lost and then manifests as yellow or green orbs in the surrounding area. Wizard Acantha is of the opinion that green orbs are, as opposed to the yellow orbs, the energy in the rune altars that supply magic. Because of this, she believes that the yellow orbs are useless byproducts that would ultimately pollute the altars.