| #2 |  Knowing You
| 4 | 1 read | |
| #3 |  The Maid of Ballymacool
| 2.5 | 2 reads | |
| #4 |  Code Name Edelweiss
| 5 | 1 read | |
| #5 |  The Christmas Catch
| 3.5 | 2 reads | |
| #6 |  The Wings of Poppy Pendleton
| 5 | 1 read | |
| #8 |  Secret Agent Brainteasers: More Than 100 Codebreaking Puzzles Inspired by Britain's Espionage Masterminds
| 0 | 0 reads | |
| #9 |  Irish Meadows
| 4 | 2 reads |