Indispensable Invisibility Spell

This recipe, transcribed from one of the Greek Magical Papyri, creates a paste that makes you invisible until sunset

Procedure

 * 1) Grind together fat, the eye of an owl, a ball of dung rolled by a beetle, and olive oil
 * 2) Chant "I adjure you by your great name. Make me invisible, Lord Helios, in the presence of any man until sunset"