"How can I be sure that you are you, and not alien using knowledge held by de Lorraine's brain?" he asked, looking on de Lorraine and analysing her reaction. There always was such possibility to become just a puppet, and even if he agree for her, certainly attractive proposal, seeing what she know and her abilities, as well as including how this and his own goals and ends may coexist... It could benefit the plan. However: "This reminds me about ants we have on Orleanais and New Paris. Their behaviour sounds similar."