Aeros would awaken in his own bed, in his family estate in the Umbrium. His eyes were burning and his vision was blurred a bit, and no amount of blinking, rubbing, or otherwise attempting to deal with it would abate the blur. He'd be able to feel the void of his missing Semblance Rune, clawed off of his soul, and he'd be able to remember everything leading up to when he'd touched the Monolith. But now he was somehow back in the Umbrium, in his bed, and no memory of how he'd ended up here. There were fresh clothes and a wash basin prepared for him, delicacies were laid it if he wished to break fast in private.
A servant knocked upon the door, entering the room, providing all the proper etiquette befitting their station. When given permission to speak, "Dominus, Khyan Nykara is requesting an audience with you." Beyond that, beyond the effects of a missing rune, however, Aeros would find that his day, from the servants, the family members, all of the normalities of an entirely normal day in his life.
However, any attempts made at asking about his journey to the tree would be met with confusion and ignorance. As far as any were concerned, he'd never left, nor considered having left. He'd been here, all along, performing his normal duties, hobbies, and proclivities. And he would find that any attempts to access his missing Semblance Rune would be met with excruciating pain and his vision blurring further and growing dark for several minutes before returning back to its normal, slightly blurred state.
Otherwise, it was an entirely and perfectly normal day.