Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | The Governess Affair | 2012 | Courtney Milan | Buy |
| 2 | A Kiss for Midwinter | 2012 | Courtney Milan | Buy |
| 3 | The Duchess War | 2012 | Courtney Milan | Buy |
| 4 | The Heiress Effect | 2013 | Courtney Milan | Buy |
| 5 | The Countess Conspiracy | 2013 | Courtney Milan | Buy |
| 6 | Talk Sweetly to Me | 2014 | Courtney Milan | Buy |
| 7 | The Suffragette Scandal | 2014 | Courtney Milan | Buy |
| 8 | In Which Adam Reynolds Meets Frederica Marshall-Clark | 2016 | Courtney Milan | N/A |
The Brothers Sinister series by Courtney Milan opens with The Governess Affair in 2012 and runs eight books through 2016. The first three entries — The Governess Affair, A Kiss for Midwinter, and The Duchess War — all appeared in 2012, giving the series a strong initial run before continuing with The Heiress Effect and The Countess Conspiracy in 2013.
The 2014 books, Talk Sweetly to Me and The Suffragette Scandal, pick up titles that suggest a more politically charged tone as the series progresses. The final entry, In Which Adam Reynolds Meets Frederica Marshall-Clark, arrived in 2016 to close out the run. Reading the series in order allows the characters and their connections to develop naturally across all eight books.