At least it will rise temporarily. The Fleeting Pages pop-up store will be in existence for about a month, then it will vanish into the ether--like a forgotten remainder book at a Going Out of Business Sale or the value of stock options at a formerly revered bookstore chain.
I wish Fleeting Pages well. You see, I'm a fan of the pop-up: books, stores, or Whack-a-mole variety, and I love that they are finding a way to re-inhabit this space in a meaningful way. If I were in Pittsburgh, I would stop by and buy something. If you're in the neighborhood, I hope you will do the same and tell them "hi" for me.