(Kipo and the age of Wonderbeasts and Origins au) The world had been destroyed for around 200 years, and most of humanity lived in underground burrows hidden away from the surface. They hide from creatures called mutes that used to be normal animals. Now many had human-like intelligence and all of them fought for survival in a mute-eat-mute world. But when a mega mute passes overhead one particular burrow, two kids get thrown into the water system and end up on the surface. Now they must survive the mutes trying to capture and eat them, including a powerful mute that all fear. But luckily, they aren't alone in their travels, even if they don't have each other.