You know as well as I that my sister would never orchestrate her son's own death, particularly in light of the evidence that he was at least temporarily swayed to turn against our Lord and all that He stands for. One can hope that in his final moments Draco had a change of heart and was coming to us to tell all.

The safe house appears to have been occupied for at least a week. It would not have held more than four people, maximum. The conditions are habitable but not ideal, that alone may have been what caused Draco to re-think his situation. So accustomed to the best, that one. Some old blood on the floorboards - verified as Draco's. A scrap of some coarse garment snagged on a nail - the mudblood's, I would wager.