Hidden on: 08/08/2017

Title: From the Mixed Up Files of Mrs. Basil E.Frankweiler

Author: E.L. Konigsburg

Tracking Number: V44

Location: Scenic Hudson Park, Beacon, New York United States

Clue:

If you know a lot about Beacon this will be easy for you:
Where the high mountain rests. It is where you go to rest your feet.