New Dungeon Starter: Altar to an Unknown Demon

You have my niece Bridget to blame for this one and her fan love of the wonderful Netflix series Stranger Things (which I share). I have always wanted to do a Dungeon Starter based on the tremendous first edition D&D PHB cover and that has somehow gotten mixed up with Bridget's desire to slay the Demon Prince.
Enjoy!

https://drive.google.com/file/d/0B7cav44145d9SXhMQkd3Zk9SUDA/view?usp=sharing