There are 3 books in the In Service series. The newest book is True to Your Service which came out in 2020.

1
At Your Service

Book cover of At Your Service
A butler. A spy. A toilet brush. A romantic suspense cosy spy-thriller-mystery with a dash of grittiness and humour. It's Charade meets Remains of the Day.

After three years in the employ of a former British army officer turned Risk Assessment Specialist, widowed butler Mae Valentine is familiar with Major…
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2
Forever in Your Service

Book cover of Forever in Your Service

A heartbroken butler. A dead spy. A randy little dog.

Reproduction wines, counterfeit handbags, forged art, and sham relationships trap Mae in a web of phonies, frauds, and liars--with Kitt the greatest charlatan of them all.

Spies come back from the dead in movies and books, but this isn't film…

3
True to Your Service

Book cover of True to Your Service
Former butler Mae Valentine accepted the risk-filled life Major Hamish Kitt led when she married him. He’s out of the field, now teaching novice spies how to be spies. Then an accident—or terrorism—drags the couple to tulip fields and sex shops in charming, deadly Amsterdam. Suddenly, it’s extortion, nasty little…