I remember i read a book series a couple years back about adults disappearing outside of a barrier but i couldnt find it anywhere, ill try to recount some of the details of the books below.
The opening scene a professor vanishes into thin air
If i remember correctly the children obtain power levels from one to four.
Their was a group of teenagers who were the villans
Their was the little brother of the protagonists main love interest who may have been autistic if I remember, and he had the strongest powers.
Their was a scene where they found a dead newborn baby.
Their was a part where the adults and kids could see eachother through the barrier.
Hunger was a big part of the main idea and their was a constant struggle for food.
I think their was a plague or parasitic worm in one of the books.
i think it was 5 books in total and i read it around 2018-2019
Also their was lots of sexual scenes in the books.
by deleteNOW5058