Celeste Bradley novels - reading order

For the past few weeks, I've been reading Celeste Bradley's "Liar's Club" and "Royal Four" series of regency-era romantic spy novels. These books contain a continuing storyline with a definite chronological order. The order of each series is listed on the author's web site but, over the course of reading them, I'm finding that the second series actually begins in the midst of the first. There is also a short story thrown into the mix. So. I'm putting down the proper reading order of the books here so I can better keep track.

1. The Pretender (Liar's Club #1)
2. The Impostor (Liar's Club #2)
3. The Spy (Liar's Club #3)
4. "Wedding Knight" in My Scandalous Bride (short story)
5. The Charmer (Liar's Club #4)
6. To Wed a Scandalous Spy (Royal Four #1)
7. The Rogue (Liar's Club #5)
8. Surrender to a Wicked Spy (Royal Four #2)
9. One Night With a Spy (Royal Four #3)
10. Seducing the Spy (Royal Four #4)

I suspect there may be another Liar's Club book forthcoming because of certain plot elements that have not yet been resolved. However, these things may all be resolved in the remaining Royal Four books - I don't know yet. I'm also planning to review all of the books in this series (they really are all excellent); I just have to overcome my laziness and do it.