Grandchester Mystery Mansion

Grandchester Mystery Mansion is a haunted house exhibition in Nuka-World in 2287.

Notable loot
SCAV! Issue #4 (+5% explosives damage). On a wooden box in the attic storage/workshop.

Appearances
Grandchester Mystery Mansion appears only in the Fallout 4 add-on Nuka-World.

The Grandchest Mystery Mansion is a reference to the Winchester Mansion and it happens to be an Easter Egg.