Tarterian Depths of Carceri

Publisher's blurb: Open these pages and learn about the greatest prison in all the multiverse, the Tarterian Depths of Carceri! The mythical Codex of the Infinite Planes is a massive book containing information on the very planes of existence. Too many for one document to tackle, so it's been divided up into volumes covering individual planes. Crack open the Codex in this continuing volume and learn about the Tarterian Depths of Carceri, the most infamous prison in all the multiverse. Six layers of misery and danger filled with castoff, discarded, or just plain dangerous denizens, all looking to betray and backstab their way to freedom.