Runes, also known as Marks, are symbols that grant beings various supernatural abilities, with both angelic and demonic runes known to exist. For Shadowhunters, runes are a complex runic language given to them by the Angel Raziel, which grants them powers beyond those of mundanes. Runes are burned into Shadowhunters' skin using steles, and are their most common tool in their fight against demons. Runes are markings given to the first generation of Shadowhunters by the Angel Raziel to…
