I thought we had gotten over this already!
Anyway, in the Riddle House lived Mr. and Mrs. Riddle (Voldie's grandparents) and their son, Tom Riddle (Voldie's Dad).
The pale boy Frank saw was none other than Voldie himself, who had gone to kill his father and his grandparents.
hope i was clear enough!

http://www.behindthemasks.com/dawnatello/harrypotter/adoption/
D.B.N.G.T.M.
Sirius i luv you
Bellatrix DEAD!!
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"While we are mourning the loss of our friend, others are rejoicing to meet him behind the veil."
- John Taylor (1753-1824)
Hallie P.