Castiel's eyes narrow as he listens to this, unsure of how to respond. He doesn't know enough about Wards and Guardians to have any of the answers, but there is something about this conversation that seems familiar. "She believes he's possessed by this 'Minoru,' as well as herself and a woman named Molly. However, I saw no signs of possession on Iris."

He knows that this doesn't eliminate the chance that he could possibly be possessed, but he doubts it. Magic works differently in Chicago, and he knows that humans -- angels or not -- are capable of great destruction all on their own. He considers for a moment, before replying. "Though his being her 'Ward' would explain the bond that I saw in her mind."