Dobbins had volunteered to apparate to a remote corner of the Hogsmeade train station. This way, they could intermix themselves with the students returning from holiday and no one would be privy to the fact that Malfoy was using elves to apparate in and out of the school. As a precaution, Malfoy also ordered Dobbins to drop off the ritual book in Hermione’s room, in the off chance the school would insist on searching bags and trunks.