A Murderous Relation by Deanna Raybourn

The Prince is young and he's close to becoming a scandal so Veronica and Stoker are asked to save him.  All they have to do is steal a diamond star from a house of ill repute...

Berkley and Net Galley let me read this book for review (thank you).  It is being published today.

The house is in an odd part of town and is quite plain looking on the outside.  The evening they visit is a bit like an open house.  Come, see what's offered and see if you want to buy membership.  They are coming to steal, not buy.  But it's difficult.  It's in the owner's private chambers in a safe and the area is guarded.

Before the night is over, the owner has been killed and they have been taken captive by Veronica's Irish Uncle and a corrupt cop.  They can't get out and Stoker gets beat up.  Then they find a way and they take the other prisoner, the Prince, with them as they go.  The bad guys are after them and they run across roof tops and down dirty alleys to escape them.  Stoker's older brother takes the Prince back to the palace, they head home.  But there's a disagreeable smell there.  Someone has shared the dead body with them...

Then a private collector calls them complaining about the animal he bought from Stoker.  He says the glue is coming undone.  But it's a trap and there is a shootout.

Veronica and Stoker are always in dangerous situations.  It makes the story more intriguing.  I really like this series.