I have received many emails since Covent Garden Mystery's release regarding availability of the other books in the series. I apologize for not answering each email--I have received so many I thought I would answer all at once here.
As of right now, the first three books--Hanover Square Affair, Regimental Murder, and The Glass House--are out of print. I don't know if Berkley plans to reprint or whether I will try to find another publisher for them. It's up in the air right now.
I suggest a couple of things
1. Many libraries purchased the books, so if your library has an Interlibrary Loan service, try that.
2. There is a a yahoo group called Bookstore Junkies where you can post your "wish list" of books you are looking for and incredible people on that list track down books for you. While I'm not an advocate of buying used books when new ones are available, when they're out of print there isn't much choice. The URL is http://groups.yahoo.com/group/bookstorejunkies/ You will have to create a Yahoo id and password if you don't already have an account.
I will keep readers informed here and on my site with news of the next book(s) in the series. I'm writing many books right now (my fingers hurt), but I will let you know when Lacey's next adventure is one of them. So many things can happen to our fearless captain!