"The Haunting at Hobbleton Hall" is a solve-it-yourself source-based mystery.  Read all the sources - which include, advertisements, letters, newspaper articles, etc., then see if you can solve the mystery. 

When you have done this, imagine yourself in the role of the leader of the "Ghost Hunters of Hull" team, and write a final report.  To see if you were right, compare your report with their report which can be found here (NO CHEATING!).