Those “blue elves” might be some forgotten entities linked to Yuletide Rob. I’m glad your safe for now and your pops really was just protecting you. Sorry about your mom.

However those blue elves, they kind of sound like some rogue element of a Wild Hunt. Possibly something the knowledge of which was purged by the church in the Middle Ages.

I hope you find answers, because they already had your scent when you were little. Your Pops might have a very good reason to be worried.