Stolen (a Diana Hunter mystery) by Alison Golden and Gabriella Zinnas

During a charity ball, at a prestigious hotel, suddenly all the guests realise that they have been robbed. All their money, watches and jewellery are missing, but no one present saw or felt a thing. 

When this happens for a second time at another event the Vancouver Police Department (VPD) call in the help of Diana Hunter as a consultant to help them to work out how the crimes were committed and then to find out by whom. 

Not everyone in the VPD is happy to have Diana involved. 

I enjoyed the book and am sure I have previously read a Diana Hunter mystery book. I have also recently read another book by Alison Golden.