The holy warrior-brothers of the Grey Knights escort an inquisitor to the Zhadanok prison complex on Orina Septimus. There, surrounded by the acid-oceans of that dying world, resides a prisoner of inestimable value - a prisoner whose knowledge stretches across ten millennia, a prisoner who is a greater threat than everyone else in the complex combined. His name... Erebus. Read it because On a dying prison world, an inquisitor and his Grey Knights bodyguards visit the most dangerous inmate of the facility - Erebus of the Word Bearers. From Tales from the Dark Millenium.