To fully understand Maturin, you’ll have to learn a little bit about Stephen King’s version of the beyond. It all starts with “The Prim,” which is a place of chaos and disorder. Since this is Stephen King we’re talking about, The Prim was filled with demons and monsters and all sorts of nasty things. The Prim was also home to a benevolent being known as Gan who found a way out and established the Macroverse, which encapsulates our reality and all the infinite parallel realities that mirror our own.

Gan’s job is to keep the monsters from The Prim contained all while holding all existing realities together.

All this lore is mostly saved for King’s magnum opus, the “Dark Tower” series, which is a genre-bending sci-fi/fantasy/horror tale that follows a lone gunslinger as he attempts to save all universes by protecting the titular Dark Tower. However, everything King has ever written is connected to “The Dark Tower” in some way, shape, or form. “Cujo,” “Christine,” Jack Torrance, and Annie Wilkes all exist in the same world as Pennywise and Maturin the Turtle.