A Shifty Story

Mission Street Puzzles’ authors have written a new bestseller, “A Shifty Story”! In what corner of Austin will they be having their first book signing?
Two hours after puzzle release, a hint will be available here.

For your convenience, we also have this puzzle in pdf format. The PDF is not a separate part of the puzzle. Puzzle PDF.

Note: Mission Street Puzzles’ interactive puzzles are best viewed in the Chrome browser.