Phlegethon

[ Pandemonium ] [ Pandesmos | Cocytus | Phlegethon | Agathion ]

Pandemonium — Layer the Third

The Deep Damp Dark; the Burned Land; the Groaning Grotto; the Hollow of Want

The tunnels of Phlegethon are ice cold and pitch dark, and even the wind has lost some of its ferocity. Once smooth walls, looking like they were bored out by some enormous tunnelling creature, the constant drip of water over the millennia have filled the ceilings with stalactites and the floors with stalagmites. Yes, gravity here is ‘normal’, meaning the mineral-rich waters drip incessantly. The rock here seems to absorb light and heat, making Phlegethon even more forlorn than the higher layers of Pandemonium, if that’s possible. This is the plane of bitter loneliness, the yawning desire for something—anything—to keep one company.

Locations of Phlegethon

• Castle Caderis (site)
  • Dead Gods [2e] p109-111
• Dark’s Embrace (independent burg) ‡
• Delerium Malevolens (independent burg) ‡
• Gorellik (destroyed realm of Gorellik)
• Hidden Betrayal (realm of Diirinka)
  • On Hallowed Ground [2e] p83,172; Manual of the Planes [5e] p303
• Living Tunnel, the (site) ‡
• Ibrandyllaran (realm of Ilbrandul)
  • On Hallowed Ground [2e] p182
• Maelstrom, the (realm of Zeboim)
  • On Hallowed Ground [2e] p180; Manual of the Planes [5e] p304
• River Pyriphlegethon (planar pathway) ‡
• Sea Subterranean, the (site) ‡
• Ship of Fools (burg) ‡
• Skull Palace (realm of Nasri) ‡
• Unseelie Court (realm of Faerie Queen of Air and Darkness)
  • Dead Gods [2e] p109; Dragon Magazine 359 p121; Manual of the Planes [3e] p211; [5e] p303; On Hallowed Ground [2e] p94,175; Planes of Chaos [2e] Book of Chaos p42,54,97,100-101
• Windglum (independent burg)
  • Bastion of Broken Souls [3e] p16; Dead Gods [2e] p105,108-109; Manual of the Planes [3e] p99; Planes of Chaos [2e] Book of Chaos p97,99-100; Chaos Adventures p24-25; Travelogue p6,36-37; Planewalker’s Handbook [2e] p24

Powers of Phlegethon

• Diirinka (derro power of magic)
  • Manual of the Planes [3e] p100; [5e] p303; On Hallowed Ground [2e] p80,83,172; Planes of Chaos [2e] Book of Chaos p90; Planes of Law [2e] Acheron p21
• Gorellik (wandering power of gnolls)
  • Dragon Magazine #358 p65; On Hallowed Ground [2e] p137,176; Planes of Chaos [2e] Book of Chaos 9,18,90; Chaos Adventures p26-27; Planescape Campaign Setting [2e] DM’s Guide p63
• Ilbrandul (Faerûnian power of the Underdark, dead?)
  • Guide to the Astral Plane [2e] p38; On Hallowed Ground [2e] p182
• Nasri (Baklunish power of murder and sacrifices) ‡
• Queen of Air and Darkness (Archfey power of dark magic)
  • Dragon Magazine #359 p121; On Hallowed Ground [2e] p175; Manual of the Planes [5e] p303; Planes of Chaos [2e] Book of Chaos p42,90-91,97,100-101
    Planescape Campaign Setting [2e] DM’s Guide p63
• Zeboim (Krynnish power of envy)
  • Manual of the Planes [5e] p304

Movers and Shakers of Phlegethon

• Aquis Webtoe (planar sea elf priest of Deep Sashelas [he/him] / CN; madness: can’t stay still) ‡
• Bramam (planar planetar aasimon [he/him] / LG)
  • Bastion of Broken Souls [3e] p16-17
• Eco (planar solar aasimon [she/her] / LG)
  • Bastion of Broken Souls [3e] p15-17
• Ingress, the
  • Dead Gods [2e] p109-112
• Iuthaccab (planar marilith tanar’ri [she/her] / CE)
  • Dead Gods [2e] p108-109
• Captain Vagrish (prime human fighter [he/him] / CN; madness: perfectionist) ‡

Canonical Sources: Dead Gods [2e] p105,108-110,112; Manual of the Planes [3e] p97,99; [5e] 300; On Hallowed Ground [2e] p83,172,175,180,182; Planes of Chaos [2e] Book of Chaos 92,97-101; Chaos Adventures p24-25; Travelogue p36; Planescape Campaign Setting [2e] DM’s Guide p62; Planewalker’s Handbook [2e] p24

Source: Jon Winter-Holt and Alex Roberts. † refers to a Pathfinder source; ‡ homebrew.