"That Place"

What is "That Place"?
Well...it's That Place. You've been there before. You've known it, perhaps for years.
…What do you mean you don't recognize it??
It hadn't changed one bit since you left!

Ṭ̷̃̔̐̽͌͊̽̏͝ḩ̷̨̻͙̻̩͓͔̏̅̈̋̔͑͊̏̀̈́̉̐́ẻ̵͕̩̫͎͙̭̲̣͈̹͖̱̱̹̈͂̅̌̓͑͐͆̉́͜͝r̴̢̥͇̰̩̗̮̣̬̱̪̦̈́̋ĕ̵̖̤̣̻̺̳̠̙́͑͑̏̋̈́͑̍̉̊̀ ̶̨̧̘̖̟̖͖̩̜͕͖̼̣̫̿̌ͅi̷̡̨̜̼͔̱̩̦̹̭͕̥̔́̎̊͠ş̶̨̙̜̙̮̺̳̜̹̱͚͆̀̐ ̷̞̠͈̞̥̫͔̀n̶̨̛̠͓͛͒̇̎̌͆̈̑͛̌́̎͘͝ơ̷̧͍̪̭͔̩͖͉̼͇̰͖̻̱̌̉͋̏̆̓̾̂̐̆͛͜t̴̛̛̗̫̱͍̹̘̋̔̏̇̌͐̽͛̓͜͠͝͝h̷̢̲͍̪̲̘̃̆̈́i̶̡̢̛̛̛̘͈̺͎͇̓̓͌̉̔̂̀͆͘̕̕n̶̢̠̥̲̪̠͛̐͐̚g̷̛̟̺͕̬̭̟̭͙̳̮̓̐͂̐͑̔̄̈́ͅ ̷͖̤̼̪̻͙́̓̋̑͂̊̈́͜͝w̷̧̧̦̻̘̱̬̻̪̝̰̺̅̋̃̓͋̅̐̈́̎̋̾̔ŗ̷̟̩̅͗̀̒̈͑͊͂̉̎̚̕̚o̴̢͓̙̗̻͓̫͓̍̔̈n̴̢̨̧̻̙̖̻̩̱͓͚̭͒g̵̢͓̹̫̭̣̯̗̜̰̘̤̖̫͑̌̌̏̽́̄̄̈́̎̓̒͂͘͘ͅ ̵̳͎̼̺̥̒ḧ̶̛̹̟̪̜͖̤́̄̀͋̊̈͊̓͜͝e̸͔̟̮͕̩̹̺̰̲͓͂̾̿̈́̊̀̈́͊̾́̽͘͠r̴̡̨̨͕̠̤͚̼̼̣͇̥̭͍̟͒̾̿͘è̴̛͇͎̯̤̰̝̎̏̋͒̓̆̐͌̕͝

Standing at 5 stories tall (70 ft), The Elder Demon of Envy is best described as a shapeshifting mass of oils and building materials. Although, the building materials change depending on what building its mimicking (Lots of glass for office buildings, wood for homes, etc), leading many to believe "That Place" could hypothetically survive without it. However, its sheer size and ever changing form aren't the main draw to its power: Rather, it is how this creature hunts, that is the most unnerving

First, it mimics a place, a building someone's been to before. And populates it with human clones made from the souls of previous victims. From there, these humanoids perform menial tasks reminiscent of the building That Place is mimicking, while others may find people to coax into going to The building. Once inside, the doors are locked, initially unbeknownst to its victim (or victims, if it got lucky) As its prey explored, eventually they'd notice some off things about the building: Something's leaking from the pipes, that person is acting wrong. Soon the oddities become too obvious, and when the individual goes to leave, those human mimics try to convince them to stay, all while melting into the demon's true form. All the while, That Place sheds the facade and essentially traps its victim within its oily mass, where they'd drown, and eventually find themselves as another pawn in That Place's game

Currently, this particularly dangerous creature is caged within a makeshift field: Just as false as the Sin who oversees it.