Imagine a mummy lying undiscovered in a Boston museum for years and years - and then being discovered whilst a long overdue inventory is being done. The museum has so many artifacts all undocumented! The mummy thought to be thousands of years old is the cause of a media circus - all good pr to help raise funds for the tottering Crispin Museum. To everyone's dismay during a publicly filmed unravelling of the mummy's wrappers Madam X (dramatically described by the press) is discovered to be just 25 years old of a missing girl from an archaelogical site whose body has been mummified by someone very knowledgeable in the art.
The murderer is cocky and relishes the publicity because one body and its clues leads to the next and the next. He thinks that no one is ever going to catch him. Simultaneously, we have Josephine who is working at the Museum with a highly chequered past all connected with distant strands to both the Museum and its benefactors. The murderer and Josephine are both linked though no one other than Josephine is aware of this.
Maura and Jane are the team in charge of solving the crimes. Convoluted it is, fascinating it is and a very good read. Finished it all in one go. (thats how I missed it for Mailbox).