Are we down two or three?

Riddle's diary was destroyed, as was Slytherin's ring.
Remaining are the locket, the cup, Nagini
and the ONE Mystery (maybe Riddle's trophy).

I still want to know why didn't the piece in Voldemort
die the night he tried to kill baby Harry? Or did it?



Maybe Voldemort can't split himself indefinately.
Maybe what he has left is a half of a half of a half
of a half of a half of a half of a soul....