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  MONSTROUS LAIR #39 
  RAGING SWAN PRESS
  OTYUGH’S SEWER
  SYSTEM  
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  MONSTROUS LAIR #39: OTYUGH'S SEWER 
  Monstrous Lair #39: Otyugh’s Sewer provides you—the busy, time crunched GM—with the details to effortlessly bring to life the otyugh-
  infested sewers in your campaign. 
  Are you a busy GM? Does session prep take too long? Do you never have time to work on the cool little details that can bring your 
  adventures, dungeons and campaign to life? This short, focused compilation gives you, the time-crunched GM, the tools to effortlessly add 
  verisimilitude and detail to your dungeons. Use the material herein either before or during play and bask in your players' adulation. 
  C RE DI TS 
  Design: Steve Hood 
  Development: Creighton Broadhurst  
  Art: Jacob E. Blackmon and William McAusland. Some artwork 
  copyright William McAusland, used with permission. 
  All rights reserved. No part of this publication may be reproduced, 
  stored in a retrieval system or transmitted, in any form or by any 
  means, without the prior permission in writing of Raging Swan 
  Press or as expressly permitted by law. 
  ©Raging Swan Press 2019. 
  C O NTE NTS 
  To contact us, email gatekeeper @ragingswan.com 
  To learn more about Raging Swan Press, visit ragingswan.com  
  To learn more about Raging Swan Press on Patreon, visit 
  patreon.com/ragingswanpress 
  USING THIS PRODUCT 
  Designed speciﬁcally for you, the busy GM, these tables can be 
  used before or during the game to help breathe life into a 
  monster’s lair and are compatible with published modules or your 
  own adventures. Adding depth and verisimilitude to your game 
  helps the players’ (hopefully willing) suspension of disbelief. 
   
  The tables appear in the order you’ll likely need them. Roll on 
  the relevant table and use the result to spark your creativity. Re-roll 
  or modify any inappropriate results. 
  •
  Outside the Lair: Determine features outside the lair, using 
  this table.  
  •
  What’s Going On? The otyugh probably isn’t just sitting 
  around waiting for intruders. Use this table, to determine what 
  it is doing when the PCs arrive. Remember, the PCs’ actions 
  may render some of the entries moot—particularly if the 
  otyugh is aware of intruders.  
  •
  Major Features: Use this table, to determine the lair’s major 
  feature(s). This feature is so obvious, the PCs automatically 
  notice it. Only reveal information in brackets if a PC discovers 
  it in some way. 
  •
  Minor Features: Use this table, to determine the lair's minor 
  feature(s). The feature might be so obvious the PCs 
  automatically spot it; alternatively, the PCs may have to make 
  an easy skill check to notice the feature. Only reveal 
  information in brackets if a PC discovers it in some way. 
  •
  Otyugh’s Appearance: Use this table, to generate the 
  otyugh’s appearance and other characteristics. 
  •
  Treasures & Trash: Use these tables, to add interesting items 
  to the otyugh’s hoard. Assign a value to each treasure 
  appropriate to your campaign. The tables assume you will 
  place magic items, coins and other notable items and do not 
  contain such entries. 
  The tables herein make two assumptions: 
  1.
  You have a map of the area, or will design one “on the ﬂy”. 
  2.
  You know what lurks in the area and have all their stat blocks. 
  Credits 
  1 
  ....................................................................................................
  Contents 
  1 
  .................................................................................................
  Using This Product 
  1 
  ................................................................................
  Otyugh's Sewer 
  2 
  .....................................................................................
  1: Outside the Lair 
  2 
  ..........................................................................
  2: What’s Going On? 
  2 
  ......................................................................
  3: Major Lair Features 
  2 
  .....................................................................
  4: Minor Lair Features 
  2 
  .....................................................................
  5: Otyugh Appearance 
  3 
  ..................................................................
  6: Treasures 
  3 
  ......................................................................................
  7: Trash 
  3 
  .............................................................................................
  OGL V1.0A 
  4
  .............................................................................................
  
  O T Y UGH'S S EWER 
  Often overlooked as a stupid brute the cunning otyugh is 
  nevertheless a peerless hunter in its noisome lair. 
  1: OUTSIDE THE LAIR 
  2: WHAT’S GOING ON? 
  3: MAJOR LAIR FEATURES 
  4: MINOR LAIR FEATURES 
  D10
  1
  Rusting ladders coated with grime ascend to vents set in 
  the street above.
  2
  Years of ﬁlth cover the hinges of a rusted iron gate, 
  making it look like iron bars sealing a tunnel.
  3
  A heavy gate is stuck in place; freeing it reveals a 
  severed, rotting hand wedged in the gap.
  4
  Large parts of the ceiling have collapsed into the sewer 
  forming blockages over which the efﬂuent streams.
  5
  A long ladder of crumbling iron rungs set into the wall 
  descends far into the stinking darkness.
  6
  The sewage ﬂows over a deep pit into which an unwary 
  explorer could easily blunder.
  7
  The lower half of a ladder has rusted away leaving a 
  sharp drop into the sewer below.
  8
  Tendrils of mossy yellow vines hang from the ceiling. 
  9
  Rusting pipes block the walkways forcing travellers into 
  the “stew” to duck beneath them.
  10
  A bright red inﬂated pigskin ﬂoats near a grate.
  D10
  1
  The otyugh casually throws stones into a pool and 
  seems to enjoy the splashes.
  2
  Half submerged in a pool the otyugh catches clear 
  dripping water from above on its tongue.
  3
  The otyugh struggles to clear a blockage in the channel 
  of efﬂuent that redirects the ﬂow away from its lair.
  4
  The otyugh noisily rips apart the body of a thief who it 
  recently caught; his loot lies nearby amid the muck.
  5
  Splashing about its lair, the otyugh tries to catch large 
  sewer rats swarming through the area.
  6
  The otyugh attempts to bend a grate causing efﬂuent 
  and debris to pile up in its territory.
  7
  The otyugh clears away the ﬁlth from a wooden statue.
  8
  The otyugh loudly chews on a rotting dog’s corpse.
  9
  The otyugh’s hoots and cries echo eerily through the 
  sewer tunnels.
  10
  The otyugh farts loudly.
  D10
  1
  Efﬂuent dripping from above forms large stalagmite-like 
  growths in the corridors and chambers.
  2
  A thick crust of dried sewage has formed atop the 
  efﬂuent and is seemingly solid until stepped on.
  3
  The many points of a deer’s skull stick up from the 
  depths of a deep pool.
  4
  A section of wall has collapsed into the passage, 
  creating a ﬁeld of slimy, jumbled rubble.
  5
  A beggar woman’s body is wedged into a corner.
  6
  A stream of clear water cascades down the walls 
  washing the ﬂoor clear of sewage.
  7
  An intricately carved sandstone archway of leering faces 
  frames the entrance to a chamber.
  8
  Light ﬁlters down through a crack in the ceiling, allowing 
  small ferns to grow in the walls.
  9
  The jagged legs of a statue stand in the centre of the 
  sewage channel, causing a blockage.
  10
  Thieves’ Cant symbols scrawled in faded chalk on the 
  walls point out hidden dangers and loot.
  D10
  1
  A pigskin ball ﬂoats passed in the sewage.
  2
  A smashed lantern covers a ledge with slippery oil.
  3
  A pocket of invisible gas causes ﬂames to momentarily 
  turn green and emit popping sounds.
  4
  A wooden ladder bridges the sewer; it is boobytrapped 
  to collapse when someone crosses.
  5
  A barrier of long sharp poles is embedded into a pile of 
  refuse pointing down a narrow corridor.
  6
  A bloated sheep’s corpse explodes when it brushes 
  against the wall, ﬁlling the area with nauseating gas.
  7
  An open secret door wards a room holding the 
  discarded corpses of a murderer’s (or cultist’s) victims.
  8
  Rancid gas bubbles up from the efﬂuent ﬁlling the area 
  with a eye-watering vinegary stink.
  9
  Thick iron bars blocking the channel hold aloft the 
  unstable ceiling; removing or damaging the bars causes 
  the ceiling to collapse.
  10
  The channels lead to a large swirling pool which drains 
  the sewer into a deeper network of caverns.
  �2
  
  5: OTYUGH APPEARANCE 
  6: TREASURES 
  7: TRASH 
  D10
  1
  The otyugh’s thick blue tentacles ﬂoat on the surface of 
  the muck, as it rests.
  2
  A thick crimson pattern decorates the the otyugh’s back.
  3
  With chalk grey skin speckled with browns and greens 
  the otyugh blends into the surrounding sewage.
  4
  Heavy spatters of russet brown marr this ochre-skinned 
  otyugh’s rubbery hide.
  5
  Boils and sores cover this otyugh’s oily yellow tentacles.
  6
  Thick black bristles erupt from the legs of this grey and 
  black striped otyugh.
  7
  Huge bloodstained tusks protrude from the corners of 
  the otyugh’s mouth, giving it a boar-like appearance.
  8
  Three small nub-like horns protrude from the centre of 
  the otyugh’s head.
  9
  One of the otyugh’s tentacles is shredded and torn. The 
  wound weeps a yellow pus.
  10
  The otyugh’s stripes ﬂush an angry red when the beast is 
  angry or frightened.
  D10
  1
  A small dove carved from a chunk of rock crystal renders 
  the bearer immune to disease.
  2
  This long-bladed, razor-sharp ranseur is immune to rust 
  and decay. 
  3
  This large backpack seems impervious to the rot and 
  grime covering everything else.
  4
  A silver pomander ﬁlled with pungent, dried herbs that 
  counter the stinking effects of the sewers.
  5
  This noble’s fencing foil is bent out of shape yet may be 
  worth a lot to its former owner’s family.
  6
  Elegant, but ﬁlthy, silk slippers laced with pearls and 
  amethyst adorn the feet of a female human’s skeleton.
  7
  This small ceramic pot contains grey paste that destroys, 
  or possibly repairs, rust when applied.
  8
  Gold and silver coins ﬁll this large box. The chest’s rotted 
  bottom disintegrates when it is moved, dumping the 
  treasure into the sewer.
  9
  A winged helm rest on the surface of the efﬂuent; its 
  ﬂying charm failed its previous owner at the worst 
  possible time.
  10
  This sharp-bladed short sword carries the taint of the 
  sewers on its blade and inﬂicts disease on those it cuts.
  D10
  1
  Filled with rotten eggs and a slurry of decomposing 
  straw, this small crate collapses into itself, if moved.
  2
  A collection of metal spoons now rusted and useless.
  3
  This broken walking stick has a carved owl’s head.
  4
  A parrot skull decorates the top of this small jar.
  5
  A broken-hafted shovel.
  6
  Buckets ﬁlled with faeces and other foul stuff are lined 
  up against one wall.
  7
  A broken rake lies under the muck, its sharp rusted 
  prongs ready for unwary feet.
  8
  This half-submerged wheelbarrow is missing its wheel.
  9
  Buried in the muck this small child’s skeleton yet holds a 
  bone rattle to its chest.
  10
  A shiny object ﬂoating on the surface of the stew turns 
  out to be a shard of broken glass, on inspection.
  �3
  
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