This is a part of Amazon’s summer short story grouping called the Hush Collection. All of the short stories and the Audible addition are free with Prime right now.
Leah lives on a remote island with her family surrounded by a wall they built to keep they safe. Father insists they are not safe without this wall. This short story explores illusion vs, truth.
As an English teacher, I found this to be brilliantly clever. Ruth Ware is a master of suspenseful writing, and she delivers again with this short story.