But many were in-stock as of yesterday when I was checking (6/22/17).

And Between the Shadows has been in reprint mode since January 2017? Seems an awfully long time, particularly with no other reprints on the way.

I'm just trying to get in to the game and found this curious. Any thoughts as to why it might have all gone out of stock in the course of 1 day?

UPDATE: Looks like it was just a glitch and everything is back up!