Voldmorte's Wand and the Graveyard Scene

[jjpandy]

No: HPFGUIDX 85861

Some thoughts on Voldemorte's wand:
There is a 13 year gap in the spells that comes out of Voldemorte's 
wand at the end of GoF.  The gap is between the spell that killed 
Harry's mother and the spell that killed Bertha Jorkins.  Why is 
there no sign of the spell that backfired from young Harry onto 
Voldemorte?  Even though the spell did not work as intended, it still 
had results (Voldemorte's loss of power, Harry's scar, the creation 
of a link between Harry and Voldemorte).  Where was Voldemorte's wand 
during the gap?  If Peter Pettigrew helped Voldemorte get his wand 
back (from a hiding place?) why didn't Voldemorte retrieve his wand 
sooner when he had such a strong hold on Quirrel?
And for the record, I am sure that Voldemorte was focused on getting 
the prophecy in OotP before taking any other action because the 
graveyard scene in GoF scared the sh-- out of him or at least made 
him rethink the strength of his powers.  Harry was the stronger of 
the two in the graveyard because his wand won the battle.  Voldemorte 
would have to admit that Harry is a serious opponent after his (Vold) 
wand was forced to show prior spells.  How did Voldmorte save face 
among the Death Eaters in the graveyard after losing the battle of 
the wands and after Harry escaped?
-JJPandy