The smooth granite wall seemed inconspicuous to the eyes but his senses were screaming with the amount of magic coming from the wall itself. He tried feeling beyond it but was blocked by something. Jon curiously tapped a few places on the wall, but it was solid and unmovable. He unsheathed his bronze sword again and curiously stabbed the grey granite but the tip of the blade slid sideways, making sparks dance in the air. He hummed inwardly and sheathed back his sword. The wall was charmed to be unbreakable and couldn't be bypassed by ordinary means.