1d20 Random Remains Of The Passing Of The Mythos Encounter Table For Your Old School Campaigns

Dominique Signoret Nyarlathotep artwork

They're crossings upon our world split reality, sunder sanity, & cause mortal men to quake in fear at the mere mention of their dreaded names. These are the Outer Ones, the old gods of ancient mankind whose mere mention of their names can attract their dread attentions.



Dominique Signoret artwork of  Yog-Sothoth

"Yog-Sothoth knows the gate. Yog-Sothoth is the gate. Yog-Sothoth is the key and guardian of the gate. Past, present, future, all are one in Yog-Sothoth. He knows where the Old Ones broke through of old, and where They shall break through again. He knows where They have trod earth's fields, and where They still tread them, and why no one can behold Them as They tread. "
HP Lovecraft "The Dunwich Horror " - Written Summer 1928; first published in Weird Tales, 13, No. 4, (April 1929)

Adventurers who blunder into areas where the dread Lovecraftian gods have been summoned or crossed into reality are at great risk for their passage tears reality to shreds & in their wake places are changed, mutated, & never the same. There are those that whisper that that there is a 60% chance of some minor race or thing that follows these entities in their wake. Dungeon masters should make note of these types of weirdly horrid encounters.

1d20 Random Remains Of The Passing Of The Mythos Encounter Table

1.  The ground is split for over five miles around, every tree has been splintered, blackened, & bird's flesh has been consumed. There are clean skeletons where they have fallen to the ground. Ground water has been turned strange with no earthly colors floating in it. There is a stillness to the air & a strange piping can be heard if the wind is right. There is evidence of strange furrows dug into the earth here & there as if great tendrils were dragged across it. 
2.  The wild life has been mutated & made insane, things have been turned inside out, the ground leaks strange blue green fluids & there are weird blackening at the tops of what were once trees. The plants themselves seem twisted, mutated, and unwholesome. There is a 70% chance of encountering a black pudding or some other ooze like monster. 
3. The ground all round has been blackened, twisted & turned to an ash like substance. No psychic will go near the three mile area and there are weird glyphs burned into every standing structure for a 70 yard radius. 
4. Each and every single thing has been turned inside out and been changed to a weird semi precious crystal like substance. There are fires here and there that float four feet above the ground but don't exactly exist in our reality and there are odd three toed foot print like tracks covering three to four acres of ground. 
5. The ground is covered with a fine lair of living flake like skin and animals die when they touch the stuff. 
6. Thousands of strands of living tissue like webbing cover the entire area and there is a faint humming to the air which tastes and looks well wrong is the best way to describe it. 
7. There arr over eighty human or near human corpses that have been turned inside out and hooked with strange metal chains. 
8. A floating black orb twists in the sky and below it another landscape of insane geometric proportions floats under it. The thing radiates insanity and sheer malice to on lookers. Weird humanoids can sometimes be seen moving across its surface. 
9.  Each and every two hundred humanoid corpse is naked covered in cut weird glpyhs that hurt the eye to stare at them and their heads have been removed. 
10. There is a black void where the ground used to be & strange moving realities of utter alien violence & insanity that forms a disturbingly humanoid outline. 
11. There are thousands of blackened and twisted metal rods that are actually giant bones set into the ground at a ninety degree angle that form a giant alien worm like shape. 
12. The corpse of a giant angel like creature has been dissected and its alien organs  ritually stacked near the body. The ground for three miles has been blackened and twisted. 
13. A blasted landscape is host to two tons of alien organs and flesh still living & functioning connected into the ground at various points. There will be 1d20 gibbering mouthers that function as living white blood cells that erupt from various orifice like doors. 
14. Row after row of metal boxes containing the living corpses of alien humanoids are scattered around. They will bleed out & die if the boxes are disturbed. There are orc like humanoids ritually killing them and will attack anyone trying to help them. 
15. Alien shapes fill the air with light and living sound anyone caught within these displays are taken 'elsewhere never to be seen again. A distant scream is heard and a few drops of blood fall from the air. 
16. A blasted landscape has at its center an alien humanoid child that is utterly insane. It has no gender may survive long enough to utter an alien warning of the coming of some ancient great old one then explode in a violent display of organs and insanity. 
17. A giant twenty four foot tall box of black blue plastic like material contains the remains of three thousand living giant eyes and organs that are the remains of some alien god sorcerer who is searching for a particularly alien Old One. 
18. A giant two ton piece of alien god flesh seeks out a sorcerer who summoned it. The thing is incomplete and wants a living brain. Will yours do? 
19. Dimensional space is rippled, ribbed, & wrecked for over five miles there is a forty percent chance of a dimensional shambler entering our reality through the warped space of this god thing's flesh. 
20. The still living head of a spawn of Cthulhu has landed near by, the fact is that some ancient god thing is looking to kill more of these spawn and your party is in its way!