Things certainly had changed, hadn't they? He could have pointed out a thousand times he would have been dead certain that the Malfoys would have rather burned their house down than let someone of his blood stay in their home, but then again, everything had changed. Absolutely everything. Maybe, in a certain sense, the true death of Voldemort had been enough to finally change Lucius.

Then again he wasn't about to let his guard down completely, either. Really, it had only been the very real fear he had heard in Lucius' voice at the mention the dementors were nearby that had even let him turn his back on the man long enough to fight.

"Thank you," he said honestly, tucking away his wand and shifting the small pack on his back to a more comfortable position. "We've come up with something that can actually capture them, but it's... well, a prototype might be the best word for it."