*Xavro quickly goes to another pile. This time you can see what it is made from: corpses. Xavro lays on top of it and seems to like it. He then starts to draw on the walls with some blood from one of the corpses. After some guess work Shadia figures out that this house looks like Xavro's home world.
It is confirmed by Luma who entered the building without Shadia noticing*
/Luma-Shadia
Where Xavro came from its always dark as the trees block most of the sunlight that is why his house is so dark, he is used to it.
*Luma looks at Xavro, it looks like she waits for permission to tell the rest which she apparently gets*
/Luma-Shadia
There are no cities or anything like that on Xavro's world, and most beings on his world eat only meat, just like Xavro and even the trees kill living beings for their own reasons. As a result there is always a lot of blood on the trees and the ground, that is why the red paint is on the walls and why Xavro is afraid in the night as he can't defend himself when he is asleep.
He also doesn't know who his mother or father are, the name Xavro is given to him by those that brought him here. No other being has given him a name as even his own species is dangerous for him, it is not uncommon that they eat their own kind and thus he like every other one of his species that he has seen lived alone.