The Elder Futhark was something he had learned at Durmstrang as well as it was pretty much the basics for ancient runes so he didn't feel that much out of place. The Ravenclaw also didn't copy the alphabet that had appeared on the blackboard because the same thing was written on the page he had open right now.

"The Elder Futhark is named like that a'cause of the first six runes" he said as he had just read it earlier when looking for his rune symbol that was on his desk.