I'm a little confused about where Draco is.
Author's Response: when he first shows up in the chapter, he's spending time with the other Death Eaters he knows when Marcus shows up and smashes Crabbe in the face. At the end, he's at Malfoy Manor. This chapter takes place roughly at hols, so it's around the time the Trio get caught and dragged to Malfoy Manor in DH.