Theunreliablenarrator of the novel, a governess charged with caring for two children who may or may not see the ghosts she sees, invites the reader to flip-flop between thinking her a lone protector against unspeakable evil and a greater threat to the children than any spirit.
Black and Eastwood use this plot device ironically: Hoover is an exceptionally unreliablenarrator, and the way Eastwood stages the actual events suggests that Hoover is pumping up his own role and stretching the truth.