Wondering about Malfoy

[Inge]

No: HPFGUIDX 142227

Bloomsbury p 596 (The White Tomb):

Dumbledore is dead. The next day, Harry's in the Great Hall, thinking 
things. Among them:
"Where, Harry wondered, was Malfoy now, and what was Voldemort making 
him do under the threat of killing him and his parents?"

Hmmm - is it Harry or is it me being slow here?
Wasn't Draco's mission to kill Dumbledore? And wouldn't Harry have 
figured that out by now?
That thought of Harry's seemed a bit slow to me - but then again - I 
could very well be the slow part here.... but in that case, what WAS 
Voldemort making Draco do under the threat of killing him and his 
parents?

Inge