The Unmasking: An Immersive Masquerade Murder Mystery Soiree
Location: Washington Trust for Historic Preservation
Address: 1204 Minor Ave Seattle WA 98101
Contact Email: abby@preservewa.org
Website: Event Link
Date: Friday October 23, 2026
Time: 7:30 pm - 10:00 pm
Price: $50
Reservations & TicketsStep into the historic Stimson-Green Mansion for this new immersive experience!
In a world of glamour, mystery, and murder, it’s the Billionaires’ Club Annual Masquerade Ball. When a masked killer strikes, it’s up to you and your fellow guests to unmask the murderer before they disappear into the night.
With professionally trained performers spread across the Stimson-Green Mansion, you will have to explore the whole building to gather clues and find out whodunit. Masks and costumes are encouraged to help bring this glittering world to life!
This event is part of our celebration of the Washington Trust for Historic Preservation’s 50th anniversary and the Stimson-Green Mansion’s 125th birthday.