5th-level divination
Casting Time 1 minute (Ritual)
Range Self
Components V
Duration 1 minute

When you cast this spell, make a DC15 Intelligence save. On failure, you take 6d6 psychic damage and are insane until you finish a long rest. While insane, you can't take actions, can't understand what others say, can't read, and only speak gibberish. A Greater Restoration ends this effect.

On a success, you can ask an entity on another plane up to five questions. You must ask before the spell ends. The DM answers each question with one word. If a one-word answer would be misleading, the DM can offer a short phrase instead.