Oh man, something basic could be really good for Peter, because he's only barely begun touching on supernatural stuff. He's still largely in the "do research" stage, and he never knows how messing with magic could affect his whole, possession situation... But learning how to carve some basic protection figures could be cool?

It'd be interesting because I do think he'd want to tell Creeping Dust about his demon first, to make sure that won't interfere in some weird way :')