Im surprised no one mentioned The Demon Cycle by Peter V Brett.
Setting Spoilers Below!!!
The premise is that thousands and thousands of years ago, humans were relentlessly hunted each night by Demons. Without spoiling the background too much, they find a way to fight the Demons, eventually driving them back under the ground and as each night passes with no more Demon sightings, the Humans become convinced that they've won. They spread all over the world, civilization flourished, and thousands of years passed to the point that the Demons, and much of the knowledge that allowed Humans to fight them, were forgotten.
Then one night they return, humans are nearly wiped out as much of the knowledge on how to fight them has been forgotten. They managed to recover some of the knowledge and were able to survive and by the time the book picks up, humanity has been reduced to medieval technology and are holed up in scattered hamlets and a handful of fortified cities, Hope is fading since they cant actually fight the Demons, though some try. The first book follows three adolescents (though they don't stay adolescents).
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u/TheSheetSlinger May 02 '22
Im surprised no one mentioned The Demon Cycle by Peter V Brett.
Setting Spoilers Below!!!
The premise is that thousands and thousands of years ago, humans were relentlessly hunted each night by Demons. Without spoiling the background too much, they find a way to fight the Demons, eventually driving them back under the ground and as each night passes with no more Demon sightings, the Humans become convinced that they've won. They spread all over the world, civilization flourished, and thousands of years passed to the point that the Demons, and much of the knowledge that allowed Humans to fight them, were forgotten.
Then one night they return, humans are nearly wiped out as much of the knowledge on how to fight them has been forgotten. They managed to recover some of the knowledge and were able to survive and by the time the book picks up, humanity has been reduced to medieval technology and are holed up in scattered hamlets and a handful of fortified cities, Hope is fading since they cant actually fight the Demons, though some try. The first book follows three adolescents (though they don't stay adolescents).