Layer of Carceri
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The orbs in the second layer of Carceri are covered with fetid jungles and scarlet plains. The stench of decay fills the air, a rot fueled by acidic secretions of jungle plants. Those without immunity to acid are soon rendered down to their component materials if they stay too long amid the swaying trees. The jungle air deals 1d4 points of acid damage per minute, and some plants secrete more potent acids. The plains of Cathrys are more habitable. Vast, windswept grasslands cover the planes. Some patches possess razor-sharp leaves, which can cut a traveler not mindful of them. Those who hustle (double move) or run on the plains must make a Reflex save (DC 20) each round or cut themselves for 1d4 points of damage.
Apothecary of Sin: Located deep in the fetid jungles of an orb of Cathrys is the Apothecary of Sin. The Apothecary is built from cunningly woven scrap wood atop the trunk of large tree, raising the one-story structure high above the waving branches of the acid-laden leaves below. Rope-suspended catwalks provide access above the treetops, though random sections are missing, possibly victims of caustic storms. Mundane and exotic poisons and acids are bought and sold in the Apothecary. A demon called Sinmaker runs the Apothecary. Sinmaker is a glabrezu of average abilities, except for his special affinity for acids, poisons, and venoms. He delights in all things poisonous—the more diabolical, the better.
All the poisons found on Table 3–16: Poisons in the DUNGEON MASTER’s Guide are available in the Apothecary, as well as many special, unique concoctions bought by Sinmaker from travelers or synthesized in Sinmaker's ownlaboratory. Acid is also sold here, by the one-dose vial or by the thousand-dose keg. Neither the size of the purchase nor the nature of the buyer matters to Sinmaker.