A new chapter of Boo creeps into WaMu Theater this Halloweekend, inspired by the paranormal pages of Seattle’s history. Step inside the Haunted Mansion, where every room breathes, flickers, and pulls you deeper into the night.

Three immersive stages. Endless frights. And a lineup summoning RL Grime, Marshmello, Zedd, Virtual Riot, Mau P, Boys Noize, Justin Jay, Mallgrab, and more.

Seattle’s biggest Halloween tradition just got darker. Do you dare enter?