HECK‽

At last: You found the spell that opens a portal to the underworld and by the spell be protected from the horrors therin. You slip into the portal. The first thing you notice is that the air in the red tinged lighted cavern is that it's stuffy. You walk up to a demon that looks more like an overgrown lizard with snaggletooth "Welcome to Heck!" It lisps and spits on you. Then you look down: The spell was scribbled in a children's book