This story requires our BI Prime membership. To read the full article,Serial Box, a digital content startup that makes e-book and audio hybrids, produces original stories using a unique method designed for those who want to switch between the mediums, like commuters.
If you're walking to the subway, you might opt for the audio option. But if you're lucky enough to find a seat during your commute, you could pull up the e-book and pick up right where the audio left off. The company's original goal was to tap into existing sci-fi and fantasy fandoms, and one of its first hits, "Orphan Black: The Next Chapter," was a continuation of BBC America thriller series "Orphan Black." The serial was narrated by the show's star, Tatiana Maslany, who maintained a strong fan base even after the final season in 2017.