Death and time

[cantoramy <cantor@vgernet.net>]

No: HPFGUIDX 49195

This is my first posting, so please excuse me if this has been 
discussed before.

In PoA, Harry and Hermione are able to use the Time Turner to 
liberate Buckbeak, thereby preventing his death.  Yet in GoF, no one 
suggests using the TT to prevent Voldemort's return and Cedric's 
death.  I know that Dumbledore says in GoF that "no spell can 
reawaken the dead."  Would the TT qualify as a spell?

cantoramy