I've been wondering about this for a while...
Lacie's grave. Why is it on Vessalius property? Well, I kind of assume it's on Vessalius property since that's where Oz's coming of age ceremony was, and it's not in Sablier where the Baskerville mansion was... but did the Vessalius always own it?
Oz didn't grow up there, as if the Vessalius actually *live* somewhere else: "It is a beautiful mansion, isn't it? Word has it that it was built over 200 years ago, but now it's only used for the Coming of Age ceremony. You can seldom come here, so think of it as a strange party of sorts and enjoy yourself!"
That mansion is also where the Clock Tower of Silence is, the clock that stopped ticking 100 years ago. It's linked to a prophecy: "When the one whom we await descends upon the promised land, the bell will toll to break the silence." Yura had a clock tower like that in his mansion (here + 2 pages), and when it reached midnight he said "lets reenact the tragedy." Seems important. The Clock Tower of Silence was stuck right before midnight, and when Oz touched it it moved to midnight position.
In that Pandora Hearts pilot, it's said that Black Rabbit controls time. Can that still be relevant?
Anyway, point being, seems like the clock is tied to the Sablier tragedy somehow, but it's not located in Sablier. It's at the now-Vessalius mansion. And is that mansion even owned by Vessalius? Or is it some national landmark because of the prophecy so everybody goes there?
...where was I going with this? >.<