"So, you're the ones..." A mysterious package appears just as Maya and Nate start helping in their grandparents' store. Inside is just one book: a faded copy of Free to Choose. In a race against time, they must decipher a series of cryptic messages to discover the secret under the staircase. But can a bunch of kids really solve the centuries-old riddle? Can they save their beloved town before it's too late? Under the Staircase Books---A mystery and adventure series that teaches treasured values: personal responsibility, individual liberty, and economic freedom. Psst Grown-ups--The first book...