" Because Shadowhunters must also guard mundanes from knowing about our world, you must also sometimes take control of the writing of that history. By this I mean you have to cover things up. You need to provide a plausible explanation for what’s happened—one that does not involve demons.”

“Like Men in Black,” Simon whispered to George. "

― Cassandra Clare , The Whitechapel Fiend (Tales from the Shadowhunter Academy, #3)