"Oh, this little thing? Just an old protection spell, realistically sort of useless. Supposed to ward off 'evil spirits', but I don't really believe it functions like that.", the old man would answer. He'd go to get his cane and get a book from the room behind him, and would plop it down on the table when he got back. The book is titled 'notes on runes; other", and is thus likely just his collection of notes on such. An interesting idea may pop in Imgor's head, to help teach him, he could ask to borrow some of this man's notes. He seemingly must have plenty, if he has a whole storeroom for them.