The Dark Enquiry

Partners now in marriage and in trade, Lady Julia and Nicholas Brisbane have finally returned from abroad to set up housekeeping in London. But merging their respective collections of gadgets, pets and servants leaves little room for the harried newlyweds themselves, let alone Brisbane's private enquiry business.
Among the more unlikely clients: Julia's very proper brother, Lord Bellmont, who swears Brisbane to secrecy about his case. Not about to be left out of anything concerning her beloved—if eccentric—family, spirited Julia soon picks up the trail of the investigation.