
‘Yeah, Montague tried to do us during break,’ said George. ‘Malfoy just docked us all about fifty points,’ said Harry furiously, as they watched several more stones fly upwards from the Gryffindor hour-glass. The first time we hear about it, when Fred and George push Montague into it, it is located somewhere where students roam freely: We know from Order of the Phoenix that the Vanishing Cabinet in question was not always stored in the Room of Requirement. I’ve just realised that there’s a bit of a snag with this, though.

Going by this, Dumbledore clearly didn’t know that the Vanishing Cabinet was part of a pair. Harry Potter and the Halfblood Prince, ch. ‘So the Death Eaters were able to pass from Borgin and Burkes into the school to help you… a clever plan, a very clever plan… and, as you say, right under my nose…” I was the only one who realised what it meant – even Borgin didn’t know – I was the one who realised there could be a way into Hogwarts through the Cabinets if I fixed the broken one.’ ‘The other’s in Borgin and Burkes,’ said Malfoy, ‘and they make a kind of passage between them. ‘That was clever … there is a pair, I take it?’ The one Montague got lost in last year.’ĭumbledore’s sigh was half a groan.

‘I had to mend that broken Vanishing Cabinet that no one’s used for years.

‘So tell me, while we wait for your friends… how did you smuggle them in here? It seems to have taken you a long time to work out how to do it.’ Before (not) going in for the kill, the two have a bit of a face-off where Draco explains the ins and outs: In Harry Potter and the Halfblood Prince, Draco Malfoy uses a Vanishing Cabinet stored in the Room of Requirement to bring in a bunch of Death Eaters to wreak havoc and kill Dumbledore.
