Paradox Interactive released the second developer diary for Penumbra: Black Plague, offering more details about the final chapter in the Penumbra story developed by Frictional Games and scheduled for release during February 2008. Penumbra: Black Plague is a creepy and dark psychological horror experience featuring the adventures of Philip as he sets of in search of his dead father. Trapped in a shadowy, underground complex, intrepid explorer Philip is determined to discover the truth behind his father's disappearance. Surrounded by enemies and assaulted by terror from all sides, Philip must collect clues and solve vexing puzzles while combating the gnawing psychological terrors that assail his mind and threaten to strip him of his sanity.