A minor question - did the Death Eaters take one of their own back with them? Or was one of them of "special interest" to the DMLE? Harry got three, and then another four, but the Daily Prophet only reported on six of them. If the DMLE is keeping the seventh one under wraps, that opens the door to all sorts of possibilities.
Author's response
poop -- error on my part. I'll have to cut the number or add a name