A Crystal
Inside the room, Ethan finds an ancient artifact that seems to be the source of the intriguing energy. It's a crystal, about the size of a fist, glowing with a pulsating light that casts a soft illumination across the chamber.
The crystal is set upon a pedestal carved with runes that suggest it's of significant importance. Once again, its not something he understand, yet.
As Ethan approaches very slowly, he feels a warmth emanating from the crystal, a sign that it's imbued with a potent energy. The air around it seems to hum with it the closer he get.
The weird thing is, the room is completely empty beside the crystal. The vastness of the space is immediately apparent, with high ceilings and walls stretching far into the distance.
The lack of furnishings or decoration adds to the eerie atmosphere, making Ethan feel small and exposed.