A woman in a black Victorian dress stands with a suitcase beside a steam locomotive, with a large faded portrait of a man looming in the cloudy sky behind her.

In February 1861, Abraham Lincoln was making a 13-day journey from Springfield, Illinois, to Washington, D.C., when warnings emerged of a plot to assassinate the president-elect as he passed through Baltimore, Maryland. With the country already coming apart and Lincoln’s inauguration only days away, detective Allan Pinkerton raced to uncover the threat and find a way to get Lincoln safely through the city.

Daniel Stashower, author of The Hour of Peril, shares the remarkable story of the Baltimore Plot and Kate Warne, a pioneering detective who posed as Lincoln’s sister and helped smuggle the future president through the city under cover of night. We’d like to thank the Library of Congress for making this audio available to the public.