“It makes a new and engaging way to read and really enhances the experience and enhances your imagination and keeps you in the story longer,” Paul Cameron, Booktrack’s 35-year-old co-founder and chief executive, said in an interview. “And it makes it fun to read again. If you’re not reading all the time, it might help you rediscover reading.”

As e-book sales have skyrocketed in the past several years, publishers have searched for ways to improve on the digital editions of their books. In 2010 enhanced e-books with video and audio were all the rage — Simon & Schuster, for instance, found some success with an edition of its best seller “Nixonland,” with 27 videos scattered throughout the text — but sales for many enhanced e-books were dismal, and the books were often expensive to produce.

Tara Weikum, an editorial director for HarperCollins Children’s Books, said she believed “The Power of Six” could work with a soundtrack because the book is “cinematic in scope.”

“We’re learning that everything is up for grabs in terms of what people are going to respond to or be interested in, and the digital space is ever changing,” she said. “If a reader falls in love with the book, they want more of it. And if we can give it to them in something like an e-book or the Booktrack edition, then it’s pre-emptively anticipating what readers might be looking for.”

The idea of pairing a book with music is not new. In the past some authors have suggested full playlists to listen to while reading their books, and the best-selling thriller writer James Patterson has even given away CDs to accompany his novels.