A Dangerous Collaboration by Deanna Raybourn

Veronica and Stoker very nearly declared themselves in the last book. But they were interrupted by Stoker's brother, Tiberius. After that, Veronica fled halfway around the world for six months, afraid of her feelings (whether or not she'll admit that to herself). She's barely back when Tiberius lures her to a remote island, to  a house party in a castle with promises of the larvae of a rare butterfly. Veronica knows he has ulterior motives but she's willing to do what it takes to get the butterfly. And maybe to tweak Stoker's nose a bit as she poses as Tiberius' fiancée. 

But it is even more mysterious than it first appears. Three years ago, a woman disappeared on her wedding day and the family has been in hiding ever since. This house party is their first toe into coming back into society. But a seance brings a ghost back to life and old secretes rise again.

The story was fine but the real draw for me was the growth for Veronica. A bit for Stoker as well but their story moved enough to be an enjoyable read.

Four stars

This book came out March 12, 2019

Follows A Treacherous Curse

Followed by A Murderous Relation

Opinions are my own