User blog comment:Acervone924/New GF episode Talk with your minds/@comment-8929662-20150128185722

Well, the title is Northwest Mansion Mystery, as Alex Hirsch referred to it... We know very little, and some of even what we do know depends entirely on the words of one person who saw the clip at CTN. What we know: Dipper is invited to the Northwest mansion to deal with a ghost issue. Anything else we have is not yet officially confirmed, or is pure speculation. Example of unconfirmed: the ghost is a lumberjack. Example of speculation: assuming there will be some kind of romance/love.