Dorothy Harriet Camille Arnold went missing on December 12, 1910. The moment that she vanished triggered one of the most enigmatic mysteries of the last century. With so many theories as to what might have happened to her, there are a handful of possibilities that actually carry some weight to them. 

After she vanished, her worried family conducted a full-blown private investigation, contacting family friends and professionals to try and locate Dorothy’s whereabouts, all to no avail. Join us as we explore one of the most bizarre mysteries of the 20th Century and attempt to break down the possibilities as to why and how she went missing.

It has been over a century since American socialite Dorothy Arnold mysteriously vanished on the New York City streets. “The Vanished Heiress,” as the newspapers referred to her, is the subject of one of the most peculiar mysteries of the 20th Century.