The Inspector returns to the corpse. Indicating the head with a diffuse gesture, she asks: "No tumours, then?" She had entertained a brief hope for a gross physical cause. An abnormal brain might account for that unwelcome clarity in Hunter’s mind, the uncomfortable sureness of her recorded inner voice. It might also hamper the interrogation—might have made it impossible for the woman herself to facilitate it, might indeed have bent her mood and made her irrationally hostile to the very idea—and could also have killed her under stress. A neat solution, but Hinde is already shaking her head.