This is a full-band version of King Diamond's "A Mansion in Darkness" from his 1987 album, Abigail.
I've always been amazed that King Diamond has never had a single song in Rock Band. His music is perfect for the formula: crazy vocals, multiple guitar solos per song, Mikkey Dee on drums (for a few albums at least).
In this song, Jonathan and Miriam LaFey arrive inside their mysterious inherited mansion. They light some candles and prepare for bed after their long journey, but meanwhile the house seems to breathe, and the shadows seem to be alive....
There was already a guitar-only version created by Beard216. I created this full-band version from scratch.