No problem! I keep meaning to make an update on this anyway. Beneath the Mirror is fully written and is in the layout process. Rae (the layout artist) has had several very important projects to manage that have had to take priority the past year (insane that it's been a year!) so there's no current ETA on when the PDF version of the expansion material will be out, but hopefully sooner than later.
Right now I'm considering releasing a "just the text" version so that people finally can have it. Which could happen maybe toward the end of this month? I'm also under some tight deadlines for other projects, so admittedly, the BtM release has just managed to keep getting pushed back!
There's some other half-plans for the future of Vibe Check as well, but I'm gonna wait to share more on that until more things are set in stone.