The monster came to this world in the form of a meteorite during prehistoric times, on the site where the town of Derry would later be built. When humans began to colonize the place, Pennywise woke up, fed, and adopted a hibernation cycle that repeats itself every 27 years: each cycle is followed by a terrifying wave of violence, after which she goes back to sleep. He is a clown who knows even your deepest fears.. "