Orphans Philippa, Sam, Thomas, and Max must find out who stole a valuable artifact in order to save their home, Dumfrey's Dime Museum of Freaks, Oddities, and Wonders.
Four orphans are shocked when their beloved friend, sculptor Siegfried Eckleberger, is murdered. As they investigate, they find clues that his death may be tied to the murder of a rich New York heiress as well as to their own past.
When the city is overshadowed by a series of bank robberies and a wrongful murder charge, Sam, Pippa, Thomas, and Max embark on an investigation to find the real killer only to stumble across a wider plot against New York.
