Mark Blacklock is a doctor of the fourth dimension, speaks third-class Japanese and was once a human cannonball. He lives in Yorkshire with his wife and three daughters. Mark's debut novel, I'M JACK, about the Yorkshire Ripper hoaxer, was published by Granta in June 2015, followed by HINTON, a novel based on the life of British mathemetician Charles Howard Hinton, which was published by Granta in April 2020.