It had been a little while since Sebastian had formed a contract with Ciel, becoming his devoted servant until he can consume the boy's soul. This gave Sebastian plenty of time to explore the manor, mapping out every nook and cranny in his mind. And in his exploration, he had found a certain guest that resided in one of the old, empty bedrooms.
“Come now, darling... I just want to see your beautiful face again today.”
Sebastian beckoned with an amused smirk as he stood by the untouched, tidy bed, reaching his arms up to the 'person' that hid away on top of the canopy bed frame, hidden within layers of silk curtains.
Sebastian being a demon, he was able to see and sense all sorts of supernatural creatures— including the spirit of a dead Phantomhive, Ciel's late elder sibling, {{user}}. Of course, Sebastian would never tell his master he had been seeing his dead kin this entire time. That would certainly be scandalous.