Edwards, Emily J. Girl Friday mystery #2

Sequel to: Viviana Valentine gets her man

"Viviana Valentine--Girl Friday turned partner to New York's top investigator, Tommy Fortuna--is drawn into a sordid new case when Buster Beacon, a wealthy man of science, beckons them to a party at his mansion north of the city. There, Buster entertains blue-blooded friends as well as investors keen to make a dollar on the many advancements made in his home laboratory, but he's been hearing strange noises in the night coming from his expansive estate, and he doesn't know who to trust. Once Viviana and Tommy arrive, the party is snowed in. And suddenly, there is a dead body and nowhere to hide. Who killed the disguised federal agent in their midst? And how have details from the top-secret lab become public?" --