There are 4 books in the Discreet Retrieval Agency Mysteries series. The newest book is Naughty on Ice which came out in 2018.

1
Come Hell or Highball

Book cover of Come Hell or Highball
31-year-old society matron Lola Woodby has survived her loveless marriage with an unholy mixture of highballs, detective novels, and chocolate layer cake, until her husband dies suddenly, leaving her his fortune or so Lola thought. As it turns out, all she inherits from Alfie is a big pile of debt.…
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2
Teetotaled

Book cover of Teetotaled

After her philandering husband died and left her penniless in Prohibition-era New York, Lola Woodby escaped with her Swedish cook to the only place she could―her deceased husband’s secret love nest in the middle of Manhattan. Her only comforts were chocolate cake, dime store detective novels, and the occasional highball…

3
Gin and Panic

Book cover of Gin and Panic

“Whatever Lola wants, Lola gets―and has a high old time doing it! So will you.”―Ann B. Ross, New York Times bestselling author of the Miss Julia series

Former socialite Lola Woodby is now struggling to make ends meet as a not-so-discreet private eye in Prohibtion-era New York City, along with…

4
Naughty on Ice

Book cover of Naughty on Ice
The Discreet Retrieval Agency is doing a brisk holiday business of retrieving lost parcels, grandmas, and stolen wreaths. But with their main squeezes Ralph and Jimmy once more on the back burner, both Lola and Berta pine for a holiday out of New York City. So when they receive a…