Harry shook his head sadly, "Do you remember Thaddeus Travers? That first case we worked together?" Draco paused, thinking back, before nodding reluctantly, "I was involved, because he was experimenting with Horcruxes. Experimenting on muggle children," Harry felt briefly sick, thinking back to the cells they had found, "On making them into Horcruxes - he... he," he stuttered, struggling to talk about the case he had tried so hard to block out, "he was trying to possess them - he was trying to put a bit of his soul inside of them, to possess them. He’d kill one child to break his soul, then use another as a vessel for it,"