Figure Analysis
Hilkiah is a high priest who discovers the "Book of the Law" (probably a version of Deuteronomy) hidden in the Temple. When he shows it to Josiah, it sparks off Josiah's campaign against the various polytheistic practices prohibited by the book. That's important, and it's Hilkiah's big moment to shine. Nevertheless, dear reader, it's really the only thing you need to know about Hilkiah.