17 Chapters
- 1 MY LEARNED BROTHER
- 2 THE SUSPECT
- 3 A LADY IN THE CASE
- 4 CONFIDENCES
- 5 THE 'THUMBOGRAPH'
- 6 COMMITTED FOR TRIAL
- 7 SHOALS AND QUICKSANDS
- 8 A SUSPICIOUS ACCIDENT
- 9 THE PRISONER
- 10 POLTON IS MYSTIFIED
- 11 THE AMBUSH
- 12 IT MIGHT HAVE BEEN
- 13 MURDER BY POST
- 14 A STARTLING DISCOVERY
- 15 THE FINGER-PRINT EXPERTS
- 16 THORNDYKE PLAYS HIS CARD
- 17 AT LAST