The young socialite Dorothy Arnold seemingly led a charmed and privileged life. The niece of a Supreme Court justice, Dorothy was the belle of 1900s New York, an attractive and vibrant young woman living on the Upper East Side with her family. She hoped to become a published magazine writer and perhaps someday live by herself in Greenwich Village.

But on December 12, 1910, while running errands in the neighborhood of Madison Square Park, Dorothy Arnold — simply vanished.

In this investigative new podcast, we look at the circumstances surrounding her disappearance, from the mysterious clues left in her fireplace to the suspicious behavior exhibited by her family.

This mystery captivated New Yorkers for decades as revelations and twists to the story continued to emerge. As one newspaper described it: “There is general agreement among police officials that the case is in a class by itself.”

ALSO: What secrets lurk in the infamous Pennsylvania ‘House of Mystery’? And could a sacred object found in Texas hold the key to solving the crime?

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A version of this show was originally released in May 2016 (episode 205). It has been newly reedited and remastered.