The stone book lay open on the ground, presenting two giant, solid pages for all inhabitants of the sky to see. “Looks like there are words carved onto the pages,” Em said, standing on tiptoe to get a better look. “I can’t make them out from down here.” Tilly moved closer, placed her hands on the surface of the stone pages, and hoisted herself up. “Hmm.” She rested her hands on her hips as Em climbed up beside her. “Different language.” Em brushed dirt from her hands as she looked down at the foreign lines of text, but even as she tried to make out the first word on the left-hand page, the letters began to move. “Oh!” She took a careful step backward and balanced on the edge of the book as the letters reshuffled themselves to form familiar words. “That’s handy,” Tilly said. “Must be a s

