Can Fiona catch a killer and find a decent cup of tea before her mustache wax melts?

1917. New York.

Notorious spy, Fredrick Fredricks, has invited Fiona to Carnegie Hall to hear a famous soprano. It’s an opportunity the War Office can’t turn down. Fiona and Clifford are soon on their way, but not before Fiona is saddled with chaperon duties for Captain Hall’s niece. Is Fiona a spy or a glorified babysitter?

From the minute Fiona meets the soprano aboard the RMS Adriatic it’s treble on the high C’s. Fiona sees something—or someone—thrown overboard, and then she overhears a chemist plotting in German with one of her own countrymen!

And the trouble doesn’t stop when they disembark. Soon Fiona is doing time with a group of suffragettes and investigating America’s most impressive inventor Thomas Edison.

When her number one suspect turns up dead at the opera and Fredrick Fredricks is caught red-handed, it looks like it’s finally curtains for the notorious spy.

But all the evidence points to his innocence. Will Fiona change her tune and clear her nemesis’ name? Or will she do her duty? And just what is she going to do with the pesky Kitty Lane? Not to mention swoon-worthy Archie Somersby . . .

If Fiona’s going to come out on top, she’s going to have to make the most difficult decision of her life: the choice between her head and her heart.

What readers are saying about Kelly Oliver:

"Will keep you turning the pages and laughing all the way!" Dianne Freeman

“A cross between an Agatha Christie and a Sherlock Holmes sleuthing story. Just brilliant!” NetGalley Reviewer

"This historical mystery delivers twists and turns. I can't wait for the next one!" Muddy Rose Reviews

"I love Fiona Figg!" Margaret Mizushima

“Couldn't put it down.” Amazon Reviewer

"A perfect blend of wit, fun, and intrigue." Debra Goldstein

“I am hooked on these amazing characters.” Amazon Reviewer

"A fun diversion with an entertaining female lead." Kirkus Reviews

“Fans of Susan Elia MacNeal will gobble up this series! Highly recommend." L.A. Chandlar

“Diabolical plot twists, interesting red herrings, colorful characters, make this a good whodunit.” NetGalley Reviewer