Table of Contents
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Table of Contents ADVENTURE SYNOPSIS ............ 1 Sidebar: Experience Points ...................18 USING THIS BOOK ............... 1 CHAPTER 2: THE SEA Sidebar: Content Warning ....................1 BETWEEN REALMS .............. 19 Milestone Leveling ..........................1 ADVENTURE SYNOPSIS ................. 19 THE SUBTERRANEAN REALMS ....... .2 Sidebar: Berthold’s Message #2 ................19 K’N-YAN ........................... 2 ACROSS K’N-YAN .................... 19 The Ancient Ones ..........................2 Riverside Farm ............................19 Slaves of the Ancients ........................3 Mysterious Grove ..........................20 Tsathoggua Comes to K’n-yan ..................3 The Nameless Temple .......................20 Sidebar: Describing Designer Creatures. 3 The Water Entrance ........................21 YOTH ............................. 3 Sidebar: Ancient One Watercrawlers ............21 Yothans ..................................4 WATERY PASSAGE TO YOTH .............. 21 Designer Creatures ..........................4 1. Voonith Lair ............................21 Tsathoggua Comes to Yoth ....................4 2. Slime Cavern ...........................22 N’KAI ............................ 4 3. Whirlpool .............................22 4. Chuul Warren ..........................22 CHAPTER 1: THE CAVERN OF K’N-YAN . .5 5. Aboleth Lair. 22 ADVENTURE SYNOPSIS .................. 5 6. Black Hole .............................23 DESCENT TO TSATH .................... 5 7. Sunken Temple .........................23 ADVENTURING IN K’N-YAN ............... 6 8. Prehistoric Temple .......................24 Visibility .................................6 9. Starspawn Chamber ......................25 Food and Drink ............................6 THE SEA OF YOTH. 25 Treasure .................................6 Surfacing ................................25 Sidebar: Dreadful Creatures ...................7 Yothan Crocodiles .........................25 The Passage of Time .........................7 Formless Pollution .........................26 Ancient One Factions ........................7 Sidebar: Experience Points ...................26 K’n-yan Random Encounters ..................7 CHAPTER 3: THE RED CAVERN Saint Berthold’s Missives ......................8 Sidebar: Berthold’s Message #1 .................8 OF YOTH .................... .27 THE CITY OF TSATH ................... 8 ADVENTURE SYNOPSIS ................. 27 Residences ................................8 Sidebar: Berthold’s Message #3 ................27 A. The Furrow .............................8 ACROSS THE RED-LITTEN PLAIN .......... 27 A1. Crossfire ..............................8 The River of Ichor .........................28 A2. Cavalry Patrol ..........................9 The Plain of Yoth ..........................28 A3. The Path Goes On .......................9 THE ZIGGURAT OF THE BLACK SEAL ...... 28 B. Toppled Tower ...........................9 1. Grand Staircase & Landing .................28 B1. Open Top ............................ 11 Landing Tier ...........................29 B2. Wraith Lair ........................... 11 Upper Staircase .........................29 B3. Bone-Strewn Chamber ................... 11 2. Serpentfolk Camp .......................29 B4. Confused Laborer’s Chamber .............. 11 3. Flaming Staircase ........................30 B5. Holding Pen .......................... 11 4. Spider Lair ............................30 C. Archaeologist’s Hideout ................... 11 5. Broken Staircase .........................31 D. Antiquarian Institute .....................12 6. Rear Landing ...........................31 E. Tribunal Palace .........................14 7. Obelisk of Damage .......................31 F. Salvage Operation .......................15 8. Designer’s Laboratory .....................32 G. Golden Spire ..........................15 9. Obelisk of Speed ........................32 H. Cannibal Cookout .......................16 10. Broken Obelisk .........................32 I. Temple of Tulu ..........................16 11. Foundry ..............................32 J. Two Barricades ..........................17 12. Obelisk of Resolve .......................33 K. Temple of Yig ..........................17 13. The Long Stair .........................33 L. Hedonist’s Palace ........................17 14. Upper Parapets .........................33 SampleM. Amphitheater ..........................17 15. Shrine of the Black Seal ................... file34 Inside the Amphitheater .....................18 Sidebar: Experience Points ...................34 N. Temple of Tsathoggua .....................18 LEAVING TSATH ..................... 18 iii CHAPTER 4: THE LIGHTLESS FORCE LANCE ......................... 66 REALM OF N’KAI ............... .35 JOURNAL OF ARCANE CORRESPONDENCE .......... 66 ANTERN OF N YAN ADVENTURE SYNOPSIS ................. 35 L K’ - .................... 66 Sidebar: Berthold’s Message #4 ................35 ADVENTURING IN N’KAI ................ 35 Sidebar: Disease: Lightning Leprosy ............36 Lights On or Off? .........................36 Resting .................................36 Black Ichor ..............................36 Tsathoggua Shrines .........................36 THE LIGHTLESS WARRENS .............. 37 A. Welcoming Committee ....................37 B. False Turns ............................37 C. Serpentfolk’s Shrine. 37 D. Roper Holes ...........................37 E. Riverside Shrine ........................39 F. Easy Crossing ...........................39 G. Prehistoric Ruins ........................39 H. Sea of Living Ichor ......................39 I. Lonely Shrine ...........................39 J. Zhaumspawn Lair ........................39 K. Entrance to Tsathoggua’s Lair ...............39 TSATHOGGUA’S LAIR ................. 40 Attacking the Throne .......................40 Option 1 ................................40 Option 2 ................................40 Endgame ................................42 Sidebar: Experience Points ...................42 FURTHER ADVENTURES IN DANTAN .. 42 Escape from the Underworld ..................42 Rebuilding a Shattered World .................42 Rise of the Ancient Ones .....................42 APPENDIX A: MONSTERS .......... .43 ANCIENT ONE ....................... 43 Ancient One .............................43 Ancient One Controller .....................44 Ancient One Gn’agn ........................46 Ancient One Psion .........................48 Ancient One Warrior .......................50 BLOATED ZHAUMSPAWN ................ 52 DEBASED SERPENTFOLK ................ 54 Debased Serpentfolk Archer ..................54 Debased Serpentfolk Warlock .................55 DUNKLEOSTEUS ..................... 56 GYaa-YOTHN ....................... 57 N’KAI WORM ....................... 58 RE-ANIMATED ..................... 60 Re-Animated Destructor .....................60 Re-Animated Gladiator .....................62 SWARM OF TOAD-BATS ................ 64 APPENDIX B: MAGIC ITEMS ........ .65 SampleAGONIZER ........................... 65 file AUTOMATIC CROSSBOW ................... 65 DEMATERIALIZER ....................... 65 FLESH-SCULPTING CRYSTAL ................. 66 iv Book IV: Lullaby A Cthulhu Mythos adventure for 4 to 5 characters of 11th-14th level ADVENTURE SYNOPSIS Content Warning This adventure features slavery, mutilation, torture, Our heroes’ quest to stop Tsathoggua by striking at and cannibalism, as the ancient ones of K’n-yan— his lair takes them deep under the earth, into a series the primary antagonists of chapter 1—practice of caverns populated by ancient civilizations and all four. Mention this to your players beforehand, creatures alien to the surface world. First, they must ideally one-on-one, to gauge their comfort levels, make their way through the blue-lit cavern of K’n-yan and work with them to ensure that the story where the golden city of Tsath has devolved into civil you are telling together is one that is fun for war in the aftermath of Tsathoggua’s rampage. The everyone involved. Even in a horror game where ancient ones who dwell there are cruel and hedonis- the PCs may find themselves in mortal peril, the tic, relying on the labor of slaves both living and dead players themselves should feel safe at the table to enjoy a life of luxury and sadistic cruelty. While and comfortable with the game. Don’t prioritize navigating the twisted politics of the Tsathan civil disturbing content over players’ fun. war, the adventurers discover that one faction holds a Various factions of the ancient ones may try powerful weapon in the amphitheater of Tsath. If they to coerce or force the PCs into aiding them. It is can secure this weapon, they may be able to use it to important for both the GM and the players to bear grievously wound Tsathoggua through his network of in mind that the PCs need not do what an NPC asks crystals. of them—allying with villains should always be an After escaping Tsath, the adventurers find a flood- option, never the only choice. ed tunnel which leads to the lower realm of Yoth, but to reach it they must contend with the inhabitants of that dark water. On the red Plains of Yoth, they ics, and the Yog-Sothothery skill from SPCM are discover a massive ziggurat inhabited by the mighty all referenced in this adventure. The player options draconic yothans and their flesh-warped creations. presented in SPCM are well-suited to The Big Sleep At the heart of the ziggurat is a tunnel down to the and provide additional roleplaying opportunities and