Cauldron. Check.
Ivory. Check.
Mercury. Check.
Fullmoon. Soon.
Binding circle ensuring nothing goes horribly wrong? Check.

First person story about Twilight Sparkle summoning a demon for science. Spoiler: Things go wrong. Horribly wrong.
Warning: This story contains corruption, mind control, transformation and sex.
If you don't like this, you might not want to read this story.

Inspired by CoC, Village of Nightmares and the story Lilith by Angelgrace.

Second Warning: This is my first story and English is not my native language, so don't expect too much.
Special thanks to Shadowsoffate42 and 1n5aN1aC for proofreading!