The Hellboy series is published as a series of self-contained but still inter-connected mini-series and one-shots. This mini-series represents issues 15 and 16 in the ongoing Hellboy meta-series. It was preceded by Hellboy: Christmas Special and followed by Hellboy: Conqueror Worm.
Each issue contains a back-up story. In a first for the Hellboy series, these back-up stories actually take place in the Hellboy universe.
Collected Editions:
For the German version, see Hellboy: Behältnis des Bösen
For the Spanish version, see Hellboy: Caja Repleta de Maldad
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