There’s a specific crumbling in the mouth and spine, a sagging as though the underlying musculature is dissolving to water, that every detective knows: it belongs to the instant before a suspect confesses, as he finally and almost with relief lets his defenses fall away. Cassie had stopped rocking her chair. My pulse was running high in my throat, and I felt the photographs behind me catch tiny swift breaths and hold them, poised to swoop off the paper and down the corridor and out into the dark evening, freed, if only he gave the word.