The Mysteries of Udolpho

[| The Mysteries of Udolpho] is a real-life book written by Ann Radcliffe. A copy of the book hid a switch that opened a hidden passageway in the Mount Justice library. It allowed Robin and Artemis to escape Red Torpedo and Red Inferno during Homefront.

Superboy was reading a copy of the book during Satisfaction, when Wendy Harris interrupted his solace to wish him a happy birthday.