"A horcrux. Intriguing. I haven’t seen one up close like this in such a long time. But this isn’t just any horcrux. This is Voldemort’s, and a cursed one at that..." the man trailed off more to himself than to Tom and Hermione. "This curse is quite an unusual one. It’s one that can only be done with a potion," Calum said then as he turned his head and looked up at Voldemort over his spectacles.