| #2 |  A Murder of Quality
| 3.94 | 19 reads | |
| #3 |  Call for the Dead
| 3.75 | 134 reads | |
| #4 |  The Spy Who Came in from the Cold
| 4.07 | 233 reads | |
| #5 |  Tinker Tailor Soldier Spy
| 4.06 | 152 reads | |
| #6 |  The Looking Glass War
| 4 | 1 read | |
| #7 |  The Honourable Schoolboy
| 3.83 | 43 reads | |
| #8 |  A Legacy of Spies
| 4 | 27 reads |