Table of Contents ADVENTURE STRUCTURE ........... 1 C5. Human Infiltration Laboratory. 20 Leveling Up ...............................1 D. Biomass Reclamation Vat ..................21 Using this Book ............................1 D1. Empty Vat ............................21 NPCs in the Adventure .......................1 E. Chamber of the Elder Shoggoth .............21 Using NPCs ...............................1 F. Lighting Vortex .........................22 Killing NPCs ..............................1 ESCAPE FROM THE ELDER THING CITY ..... 24 What if a Character Dies ......................2 Exit Pursued by Elder Things .................24 Using the Map .............................2 Chase Sequence Rules .......................24 PROLOGUE .......................... 2 Conclusion ..............................24 Intelligence ...............................2 Leveling Up ..............................26 Decisions .................................4 CHAPTER 3. CUTTING OFF CHAPTER 1: FOR WANT OF THE SERPENT’S HEAD ........... .27 A LIGHTNING GUN. .5 ADVENTURE SYNOPSIS ................. 27 ADVENTURE SYNOPSIS .................. 5 Sidebar: Bringing NPCs Along .................37 NORTH TO THE YITHIAN CITY ............ 5 SERPENT’S HEAD ..................... 27 The Winged Voicebox ........................5 If Defeated by Elder Things ...................28 Approaching the Mouth .....................28 THE SECOND RITUAL ON THE PLATEAU ...... 6 Steam Tunnels ............................28 The Rearguard .............................6 A. The Mouth ............................28 The Ritual ................................7 B. Temple of Yig ..........................29 The Flying Polyp Tower ......................7 C. Stables ...............................29 Sidebar: Planned Obsolescence .................7 D. Shantak Lair ...........................32 Attacking Gehir ............................8 E. Sauna ................................32 YITHIAN GUARD TOWER ................. 8 F. Empty Storage Room .....................32 Making the Approach ........................9 G. Treasury ..............................33 A. Entryway ..............................10 H. Hydra Chamber ........................33 B. Ground Floor ..........................10 I. Barracks ...............................33 C. Storage ...............................10 J1. Kitchens ..............................33 D. Second Floor ...........................10 J2. Pantry ...............................33 E. Pterosentry Platforms .....................10 K. Tomb of the Serpent-Priests ................33 F. Third Floor Hallway ......................12 L. Burning Heart ..........................34 G. Command Center .......................12 M. Hatchery ..............................35 H. Barracks ..............................13 N. Council Chamber .......................35 I. Armory ...............................13 O. Alchemy Lab ...........................35 J. High Security Armory .....................13 P. Dungeon ..............................35 EXFILTRATION ....................... 13 Q. Portal Chamber .........................36 Leveling Up ..............................14 SOUTH FROM THE KARSTLANDS ........... 36 CHAPTER 2: THE SHOGGOTH CREEPS . 15 Sidebar: Simplified Travel ...................36 ADVENTURE SYNOPSIS ................. 15 Mile 0 – The Yilani River ....................36 Mile 20 – The Old Goblin Village ..............37 RETURN TO THE KARSTLANDS ............ 15 Mile 60 – Fossil Digsite ......................37 Trail of Slime .............................15 Mile 85 – Fording the River ...................38 THE ELDER THING CITY ............... 16 Mile 100 – The Pass ........................38 THE SHOGGOTH FACTORY .............. 16 GENERAL TASSALA .................... 38 A. Crescent Chambers ......................17 Battle at the Washout .......................38 B. Hallway ...............................17 Victory .................................40 B1. Shoggoth Creation Hallway ................17 Leveling Up ..............................40 B2. City Construction Hallway ................17 B3. Mi-Go Battle Hallway ....................18 CHAPTER 4: YIG SNakE GRANddaddY . 41 B4. Aquatic Battle Hallway ...................18 ADVENTURE SYNOPSIS ................. 41 B5. Shoggoth Rebellion Hallway ...............18 APPROACHING VENTISSA ................ 41 C. Laboratories ...........................18 If They Need Rest ..........................41 SampleC1. Yithian Infiltration Laboratory .............18 file Sidebar: Teleportation ......................41 C2. Proto-Shoggoth Laboratory ...............18 Dandelion’s Return. .42 C3. Biotics Laboratory ......................20 Rescuing Nesmenhit ........................42 C4. Formless Spawn Laboratory ...............20 If a Rest is Needed .........................42 iii Anchorite’s Apotheosis ......................42 DEBASED SERPENTFOLK ................ 69 Getting into Ventissa .......................42 DILOPHOSAURUS ..................... 70 The Walls ................................42 Yig-Touched Dilophosaurus ..................71 The Gates ...............................42 LDER HING ARCOMANCER The River ...............................42 E T S ............ 72 ELECTRO-TANK ANKYLOSAURUS .......... 73 A CITY UNDER ATTACK ............... 44 Random Encounters ........................44 HATZEGOPTERYX ..................... 74 The Temple of Bastet .......................44 NOHESTAN ......................... 75 Developer’s Note: NPCs in the City .............45 PTEROdaCTYL ....................... 76 The Hall of Curiosities ......................45 PTEROSENTRY ....................... 77 The Citadel ..............................46 ERPENTFOLK INOSAUR IDER The River Market ..........................46 S D R .......... 78 The Laughing Lotus ........................46 SERPENTFOLK INFILTRATOR ............. 79 The Arena ...............................46 SERPENTFOLK LIGHTNING WARRIOR ...... 80 IN THE PRESENCE OF YIG ............... 47 SERPENTFOLK PRIEST OF YIG ........... 82 Navigating the Arena .......................47 SERPENTFOLK TRAPPER ................ 83 The Stands ..............................47 SERPENTFOLK WARRIOR ............... 84 The Waiting Rooms ........................48 HOGGOTHS The Lion Pit .............................48 S ........................ 85 Elder Shoggoth ...........................85 Confronting Gehir .........................48 Hulking Proto-Shoggoth .....................87 A Task for the NPCs ........................48 Yig has Risen! ............................48 SIEGE-CLaw THERIZINOSAURUS ........... 89 Prehistorification Ritual .....................48 TELEPORTING VELOCIRAPTOR ........... 90 Messengers of Yig and Champions of Bastet .......48 YITHIAN GENERAL .................... 91 Aftermath ...............................49 ALIEN TECHNOLOGY & MAGIC ITEMS . .93 THE END ......................... 49 Adaptive Shield Array .......................93 If Gehir is Slain before Summoning Yig. .49 Dagger of Metamorphic Venom ................93 If the Heroes Slay Both Gehir and Yig ...........49 Die of Strange Geometries ...................93 If Gehir Completes the Prehistorification Ritual before Electro-Glaive ............................94 Dying ..................................50 Force Field Projector .......................94 If the Heroes are Defeated while Fighting Yig ......50 Force Genade .............................94 If the Heroes are Defeated after Slaying Yig .......50 Heat Pistol ...............................94 Leveling Up ..............................50 Matter Disruptor ..........................95 FURTHER ADVENTURES IN YILAN ......... 50 Oil of Stone to Flesh. 95 Welcome to Mesozoic Park ....................50 Psionic Lash. 95 The Shoggoth Menace .......................50 Recharge Cell .............................95 The Yithian City ..........................50 Singularity Projector .......................95 The Golden Tower .........................50 Stun Grenade ............................96 NPCS AND ITEMS OF INTEREST ..... 51 Yithian Panoply ...........................96 THE FRIENDLIES ..................... 51 RANDOM ENCOUNTERS ........... .97 Maxx ...................................52 Sarai Ninefingers ..........................53 List of Maps GUNNAR’S TEAM ..................... 54 Hexmap of Yilan ...........................3 Gunnar the Bold ..........................54 Yithian Guard Tower ....................... 11 Enivwenaye ..............................56 Karstland Routes ..........................16 THE ROCKBREAKERS .................. 57 Shoggoth Factory ..........................19 Cathbad ................................57 Serpent’s Head - Upper Level .................30 ‘Shorty’ McCallam .........................58 Serpent’s Head - Lower Level .................31 Yitya Bolkorr .............................59 Ventissa .................................43 DANDELION ....................... 60 Arena ..................................49 GEHIR ............................ 62 GENERAL TASSALA ................... 64 NESMENHIT ........................ 66 SampleALLOSAURUS ........................ 67 file Hunter-Killer Allosaurus ....................67 CHASMOSAURUS ...................... 68 Sidebar: Tamed Dinosaurs ...................68 iv Act 4: The Ancient Ages Again A Cthulhu Mythos Adventure for 4 to 5 Characters of Levels 11-14 DVENTURE TRUCTURE ture. Monster stat blocks, the Dread and Insanity A S mechanics, and the Yog-Sothothery skill from SPCM This final book of the adventure begins as