ROBBERY ISN'T ON THEIR AGENDA...
when Marcus and Samantha Willoughby end up in Philadelphia, Pennsylvania during America's first bank robbery. Everyone's convinced some special work on the bank vaults and locks provided the opportunity for the crime.
The twins agree to help accused blacksmith Patrick Lyon prove his innocence, but it's a challenge when the police and bank officials are convinced he's guilty.
It will take all of Marcus and Samantha's detecting skills, and some divine intervention, if they're going to see Pat Lyon set free before his accusers--or the city's deadly epidemic of yellow fever--do away with him forever.