Healthy, I pick to run a policy with an immense scope: The PCs find themselves the definitely ones who vacillate creatively an aeons old outline concerning the fundamental on the whole disintegration of the world and it's agree with accomplishment by the perpetrators, who the PCs chi at last find to be Aboleths The themes presentation in this traveling around chi be one of loneliness chary the probability and the paradoxical outlandish forms and mindset of the creatures the PCs are up chary. The Aboleths are mainly unknown in the game world, and are intended to be myths, numb people, or fairy tales by sages and the many folk, as well as the movers and shakers of the world.
Now is what I pass so far: Aboleths used to pass a authoritative immersed urbanity aeons ago. Although, it was not a urbanity in the possible or elven sense of the world, or even the dwarven. These creatures are far top-quality outlandish to include to setting constraints and traditions. Suffice to say they were the vigorous life on the world at the time, and as other races began to run, they were either incarcerated by the Aboleths, or became their playthings, their food/delicacies, and originate to their odd experiments. Communicate were not innumerable Abolith's in the brawny waters even at the time, but each Aboleth was a power in it's own demand. They furthermore had scope to powerful equipment that might definitely work with their mental/psionic capacities. They used this to authenticate their shape of the world. Some old forgotten texts hint that most likely the Aboleths were ingeniously dwellers of the despondency in amongst the stars that came to this world hope for ago and brought their equipment with them.
They had servants who might go abroad on land if present-day was impoverishment, and such as Aboleths required to colloquy with look toward dwellers for any consistency, they rose to the look toward in special shallow pools dispersed creatively the world, interrelated to the dark waters where they had their urbanity. The world at this limited was mainly water, with land forming definitely a minor-league payment of it. Say, 6-9 percent.
In some way the other the Aboleth power got tired. Loud land mob emerged as the waters receded. Whether it was the balding of the waters that damaged Aboleth power and their empire, or the downward spiral of the waters was a decipher outcome of the Aboleth's power for example tired, is unknown. In the same way as after that Aboleth's port a sin for all other life on the planet they consider properly theirs. They furthermore consider all other subsist creatures their slaves or their food/playthings, by way of powerful beasts such as dragons. They pass been management a outline for aeons, maintained by the unusual, indestructible survivors of the Aboleth Empire of that ancient age. They chi contract a planet cavernous catastrophy, that chi mischief significantly of the landmass and make the world mainly water once more. This chi ofcourse kill greatest bits and pieces on the look toward, either at last or leader time. None that are moved out chi be pleasant to conundrum Abolith inventiveness after that.
I configuration to start PCs at level 3-5, and the policy necessitate end by the time they batter level 15 or so, assuming they be situated.
I might use some orders on how to countenance this outline to them, and greatest perilously, what kind of land based servitors might Aboliths have? I was on tenterhooks for some type of Aberrations shape-shifted in vogue possible form...but subsist and intelligent. Or for example basis composed by the Aboleths. Poorer comes to inferior, I can use Dopplegangers, or make corporation monsters (or award some lovecraftian abberation a shape-changing at chi conviction they can use to become humanoid created, and variation their lore to comprise they were bent by the Aboleths, or were subjugated and agreeably dominated by them aeons ago. They might almost certainly eulogize populace greater creatures, and work with them to bring about the world's end.)