RE Priori Incantatem and the misplaced spell

[justcarol67]

No: HPFGUIDX 155336

katssirius wrote:
> In response to the suggestion that it is hidden in other screams,
> unfortunately there is only a long pause between Bertha' echo and
> Lily's echo.  Even if Voldemort was disembodied (as Geoff suggested)
> the spell is not there.  Other less significant pieces of magic show
> up like Crucios in the form of their results.  So whatever happened
> to Voldy should have come out of that wand unless it was not used.
> Did JKR just forget to include it or is the absence significant?
> Explanations anyone?
>
Carol responds:
I doubt that JKR would overlook something so important to her story.
The simplest explanation is that failed spells don't register in
Priori Incantatem, whether it's a deliberate spell or the accidental
effect of a conflict between "brother wands." A successful AK produces
a body. This AK was unsuccessful (or incomplete, if you prefer). No
one died, so there was no body to show up as an "echo," and the
vaporized remnant of Voldemort's soul, if its "echo" came out of the
wand, would presumably be invisible (and either silent or
indistinguishable from the scream of agony indicating a Crucio). 

There's also Harry's state of mind to consider; he would have seen and
heard the ghostlike forms of the victims, heard the screams from the
Crucios, and seen the "echo" of the conjured hand conjured, but he may
not have registered any less obvious "echoes." He was too preoccupied
at the moment to be fully aware of what was happening even if he'd
known what was going on.

Carol, who would not consider a Crucio an insignificant spell