It is indeed Lupin, but while they have him, they dont have the diamond.
In Foggs arboretum Lupin meets up with Phantom, who has the safe.
But to both their shocks, the safe contains none other than Rindou Aya.

But he is interrupted by another blast that Lupin swears wasnt him.
Its Moriarty and his merry band of famous supernatural and occult figures.
Phantom continues to not make much an impression here.

Also, at some point all the mustachioed characters kinda blended together.
That said, Im still looking forward to how this resolves.



