Summary. The prologue begins with the discovery of a secret graveyard on the campus of Nickel Academy, a reform school in Florida. The graveyard, located on a patch of field that had previously served as a pasture for the now-defunct school’s cattle and dairy business, was revealed to contain bodies after a real estate company had attempted to develop the land.
https://www.gradesaver.com/the-nickel-boys/study-guide/summary-prologue