Stab

What struck Rowan as odd was the voice of Thenos, which had an odd quality that almost reminded him of the treasure Wormtongue, because his voice was reverberating twice as if two individuals were talking at the same time.

His voice was also familiar, it sounded like the voice of Berrion and Nemesis, and it was clear that the titan had not simply stolen the energy of these two, but he had taken other things as well, and one of the things he took was their voices, and maybe something more, his intelligence was suspicious, Thenos was learning too fast, and this knowledge was not coming from his intellect alone.