1. A Cab Horse in a Barrister's Wig 9 2. Manuscripts and Murder 18 3. The Body at Traitors' Gate 28 4. Inquisition 42 5. The Shadow by the Rail 51 6. The Souvenir Crossbow Bolt 61 7. Mrs Larkin's Cuff 72 8. Mr Arbor's Aura 84 9. The Three Hints 96 10. Eyes in a Mirror 106 I1. The Little Plaster Dolls 118 12. Concerning X-19 1 127 13. Wherein Miss Bitton Burbles 135 14. To Die in a Top-Hat 145 15. The Affair of the Rubber Mouse 157 16. What was Left in the Fireplace 168 17. Death at Bitton House 177 18. Mr Arbor Hears a Voice 186 19. Under the Bloody Tower? 193 20. The Murderer Speaks 203 21. Unsolved