This surprises her into silence. Too overwhelmed to process everything being laid at her feet, Gideon treads water for a long moment.

She thinks about Jeannemary the Fourth – not huddled and sobbing with a broken heart, but vivacious, annoying, trim in navy and white, the very picture of fidelity. She thinks of Magnus Quinn and his pretty wife who Gideon had barely known.

"Okay," she says finally. "Question time. Who did all the murders? Who – what – killed the Fourth and Fifth?"