Okay kiddo, so imagine you're playing in your backyard and you start digging a hole in the ground. You keep digging and digging until you find a secret underground tunnel! That's kind of like subterranean fiction.
Subterranean fiction is a type of story that takes place underground, maybe in caves or tunnels or even in underground cities. It's like a whole different world beneath our feet that we don't normally see or think about.
These stories can be scary, like when people are lost and trying to find their way out of a dark cave, or they can be exciting adventures, like when explorers discover a hidden treasure trove deep in the earth.
Sometimes subterranean fiction even features creatures that live underground, like moles or goblins, and they might have their own secret societies and adventures.
So, subterranean fiction is like a whole new world that exists beneath our feet, and these stories let us explore and imagine what it might be like to journey into the depths of the earth.