The search for a missing child uncovers a wealthy family's darkest secrets in this 1905 mystery by the author of The Circular Study. On the morning of August 18, six-year-old heiress Gwendolen Ocumpaugh went missing from her family's Hudson Valley estate. Now her parents are offering a fortune to anyone who can locate her, dead or alive. The distressing announcement causes a stir across New York, but it is a welcome opportunity for struggling private detective Mr. Trevitt. He knows the family. He knows the girl. And he could certainly use the money. When one of Gwendolen's shoes is found in the bushes and the. Other in the river, it seems to confirm the worst. But Mr. Trevitt smells a plot. As he continues his investigation, the shocking truth of Gwendolen's whereabouts reveals buried secrets and devious deceptions.