Hellfire

Could I find the Latin book in a local library or would I have to buy it from Amazon.

Latin, and languages in general, have always fascinated me, can someone tell me where and when Latin originated, if known?

A fantasy novel I'm writing has has a lot of Latin incantations for the character's to perform magic spells ans I was wondering if this would be a good place to get the translations from English to Latin?

I'm trying to form a speech for school about why the language of Latin has died out, I read another forum and the posters kept going in circles, I felt. So I just wanted to start a brand new conversation about the subject.