Probably my least favorite of the Museum Mysteries series for a few reasons. First, can we quit making such a constant, almost worshipful, point of Abigail being a "world-renowned", famous, Egyptian archaeologist? After 4 books now WE GET IT. Although, her accomplishments seem to be wholly in the past and she hasn't done anything in her field recently. Her anachronistic urge to one-up Daniel as being a "hard man" (aka "independent woman") is becoming tedious. Secondly, the whole idea that the Peterloo Massacre, a real and horribly tragic historical event becomes the reason to murder two poor Irish women in the Manchester Museum is suspect. Even at the time of the story, when Daniel and Abigail are asked to consult on the murders, the events are 80 years in the past so the connection is spurious. I wasn't convinced. The accepted brutality of the police is evident and shocking to modern readers. I did learn to respect Inspector Grimley at the end, although his refusal to investigate the murders because the victims were poor and there were no clues (or no one to beat a confession out of) brings Daniel & Abigail to Manchester. Two things I did enjoy were the "crusading" journalist who lies to fit his own agenda as to what needs "reforming" (sound familiar?) getting caught out as an abuser and criminally insane (comeuppance) and the rugby squad bodyguards. They were delightful. Well written, well researched with many tangles, this one was a good escape but not as satisfying as previous ones.