Was there more to Malfoy's task from Voldermort than killing
Dumbledore? He worked and worked to ensure the Death Eaters could get into the castle, yet when they did get in, none of them were allowed to kill
Dumbledore, the one man kept saying that it was for Draco to do, until
Snape got there, and
Snape just did it.
If it was only to kill
Dumbledore, and the ones who came in were not to step in, why would Draco have worked so hard to get them inside at all?
Two things come to mind for me, 1 being that they took Professor Trelawny, the other is that maybe Voldermort was testing
Snape.
Can anyone else think of anything else it could be?