In 2001, Hellboy quit the B.P.R.D., leaving Abe Sapien, Liz Sherman, and a bizarre roster of special agents to defend the world from any occult threats and the growing menace of the frog army. Collects¡B.P.R.D.: Hollow Earth & Other Stories,B.P.R.D.: The Soul of Venice & Other Stories, and¡B.P.R.D.: Plague of Frogs.