B.P.R.D.: Hollow Earth #1 was published by Dark Horse Comics on January 1, 2002, as part of a series that began in 2002. Christopher Golden and Mike Mignola write, and art comes from Curtis Arnold, Dave Stewart and Osamu Tezuka. This 36-page issue features Hellboy, Abe Sapien, Elizabeth Sherman, Dr. Kate Corrigan and Johann Kraus, among 9 characters cataloged on VerseDB.