Cavum

Meet Amadeus, an absolutely oversized mimic who inhabits an old house which has now been transformed into his shell and body, every room of the house is within his body, though the first two floors act as a facade to build safety and trust with his prey or maybe even be a safe space for the friends he doesn't have he does eat people, but he isn't benevolent, or malicious humans are the only viable prey for him apart from mice which don't provide nearly enough nutrients, his stomach and other organs are more complex than shown in the art (cause I'm stupid) I will touch more on that in the future probably Amadeus is fairly well educated from growing up near human settlements and villages alone, and his home itself was found with a library on the second floor, providing him with plenty of reading material and time to learn whilst he bonded with the building. while his true form is the house itself and many of the things inside it, he also has created a human persona to ease his guests worries and create chatter whilst he comforts them before the inevitable has to happen, he doesn't like doing this, and used to dread it, but nowadays he has mostly grown to ignore his feelings and go through with it anyways for his own preservation, Amadeus' human persona can manifest within any part of his own body and some places of the yard, so long as he is making contact in some form with his main body he comes across as an eccentric well-spoken loner, well he assumes he is well spoken, his social skills aren't all there due to most contact he's had with humans being merely to get a meal for the month or year, nonetheless he makes sure at least try and give them a nice place to sleep in one of his guest rooms before dinner though as he ages he longs more and more for affection, so perhaps his next inhabitants won't be as unfortunate as the rest