Hi ho hey ho A NUMB DERIVATION is a graphical novel about Venir Stroka, a peculiar youth obsessed with arthropods & leaves, seawater & railroads, skeletons & blood. It is comprised of 18 short letters, each one being based off of a distant friend, love interest, or ex I no longer talk to, written as a strange attempt to convey some of my most terrible and loathsome fears.