While the woman was sleeping and trying to regain her strength and stamina, Roy got out of her room and started walking through the Mansion, when he suddenly felt a strong presence in there.
Due to his Camouflage, the other party didn't seem to sense him, or his position, as he didn't have knowledge of his prior existence, and only if he came in a close radius of 20-30 meters would that guy be able to sense something.
That's right, even then he could only sense that there was something weird with the surroundings around him in that radius, but he still wouldn't be able to properly determine Roy's presence and location.
If he would have to explain this, it would be the same as walking alone in the dark and feeling that there was something or someone besides himself, but there would be no sign of the other guy, that was Roy in this case.
