You can get your hands on the digital edition of Gregory Frost's Shadowbridge for only 0.99$ here. There is a price match in Canada and £0.91 in the UK.
Here's the blurb:
Sprung from a timeless dream, Shadowbridge is a world of linked spans arching high above glittering seas. It is a world of parading ghosts, inscrutable gods, and dangerous magic. Most of all, it is a world of stories. No one knows those stories better than Leodora, a young shadow-puppeteer who travels Shadowbridge collecting the intertwining tales and myths of each place she passes through, then retells them in performances whose genius has begun to attract fame . . . and less welcome attention. For Leodora is fleeing a violent past, as are her two companions: her manager, Soter, an elderly drunkard who also served Ledora’ s father, the legendary puppeteer Bardsham; and Diverus, her musical accompanist, a young man who has been blessed, and perhaps cursed, by the touch of a nameless god. Now, as the strands of a destiny she did not choose begin to tighten around her, Leodora is about to cross the most perilous bridge of all–the one leading from the past to the future. Shadowbridge is the first novel in a two-book adventure.