The Fens

The Fens is a district of Boston in the Commonwealth

Background
The Fens was serviced by Fens Way station on the subway's green line, and patrolled by the Boston Police Department from Police Precinct 8. A serial killer known as the Fens Phantom operated in The Fens, killing dozens of civilians and leaving several holotapes addressed to the detective assigned to the case.

After the war, Diamond City was constructed in the remains of Boston's baseball stadium. Diamond City grew is the area's largest and most secure settlement. Consequently, security increased in The Fens as Diamond City security set up defenses around the settlement.

Layout
The westernmost Boston district, bordering Back Bay and Esplanade to the east. Crossing the Charles River leads to the city of Cambridge.

Appearances
The Fens appear

Behind the scenes
The Fens is a reference to the real-world Boston neighborhood Fenway-Kenmore, which itself takes part of its name from the Back Bay Fens.