| 1 |
The Episode in the Plymouth Hotel |
| 2 |
Burglary! |
| 3 |
The Launch “Enid” |
| 4 |
Concerning a Peerage |
| 5 |
An Amateur Sleuth |
| 6 |
The House in Hopefield Avenue |
| 7 |
Miss Joan Merrill |
| 8 |
A Council of War |
| 9 |
Mr. Speedwell Plays His Hand |
| 10 |
The New Firm Gets Busy |
| 11 |
Otto Schulz’s Secret |
| 12 |
In the Enemy’s Lair |
| 13 |
Inspector French Takes Charge |
| 14 |
The Clue of the Clay-marked Shoe |
| 15 |
The Torn Hotel Bill |
| 16 |
A Tale of Two Cities |
| 17 |
On the Flood Tide |
| 18 |
A Visitor from India |
| 19 |
The Message of the Tracing |
| 20 |
The Goal of the “L’Escaut” |