Neville had wondered if he was going to get further argument from Harry on the issue. He supposed others would have argued further; but he was glad that Harry didn't. He was firm in his decision to fight every battle he had to until the world was a place he thought his child deserved to grow up in. And the very first step in achieving that world was to get rid of the Dark Lord. Once and for all if he had anything to say about it.
He tilted his head, listening as Harry began to speak, thankful the man was going to bring him into the circle of information. His hand found their way into his coat pocket, shoulders hunching forward, listening to every word. He found himself not quite understanding, though, because he couldn't understand at first how killing the Dark Lord's pet would do anything other then upset him. He waited though, patient as ever, knowing Harry would further explain what he actually meant.
Horcruxes. Well, that was certainly new. He took in a breath, giving the slightest of nods to let Harry know that he was following along. That made sense to him. It explained how the Dark Lord had managed to return, even though everyone had believed him to have died. If he was using these objects to prevent him from dying, it was no surprise really that he had returned. And, in theory, would continue to return until they were gone. Which meant they needed to be destroyed, even if they were difficult too, as Harry had said.
"You said there is two," he finally said, once Harry had explained through the horcruxes. "A moment ago. You said there is two things left. What is the other? Other then the snake?" He asked, as his eyebrow raised.