In Craig's words, "The Marathon Marine exploring the catacombs of an alien world." As in several of his drawings, the Marine is carrying a Pfhor staff - an in-game option that wasn't available until the release of the third-party Marathon: EVIL scenario. Looks pretty cool, though. Ambrosia Software paid homage to this picture (along with several other Mullins' images) in their game 'Ferazel's Wand'. A larger (though more degraded, due to the high jpeg compression) version (640x972, 116k) is available.