Come venture into number theory in this spooky post halloween talk, where I plan on talking about some objects that are (at least tangentially) related to number theory. Which objects will show up? Maybe elliptic curves, maybe p-adic numbers, maybe Lie groups. It's a bit of a mystery, so come to the talk to find out! In order to keep the talk from being too scary, I'll try to keep the prerequisite knowledge to a minimum.