Northumberland

Northumberland is a county on the north east of England.

Northumberland in the works by Agatha Christie

 * Anstell Manor, the home of Richard and Janet Erskine is located in Northumberland. (Sleeping Murder)
 * Hugo Lemesurier and his family lives in Northumberland. (The Lemesurier Inheritance)
 * Gabriel Stavansson went to three locations in Northumberland, looking for Hermione Leigh Gordon. (The Case of the Missing Lady)