The Emerald City Collar

"The customer's word is law," - always believed the famous jeweler Miller, used to the whims of wealthy clients. But how shocked he was when a client asked to set a gemstone of extraordinary beauty not in a ring, or a necklace, nor even in a tiara, but in... a dog collar. She loved her little dog so much that she even decided to bury him with the priceless decoration. But when Miller saw that very emerald among the jewels of a fashionable lady, he experienced double shock. Only the famous con artist and specialist in delicate matters, Lena Marquise, and his ever-present assistant Lola are capable of handling this difficult case. In order to find out what happened to the precious collar, they will have to peek into the cemetery crypt and disturb its inhabitants…