DEMON WITHIN WHISPERSYNC Posted on October 24, 2015 by admin — No Comments ↓ Hey Peeps! If you’ve already purchased the ebook of Demon Within, you can now get the AudioBook for just $3.47! What are the advantages of having both ebook and Audiobook? You can switch between reading and listening whenever you want, Pick up where you left off, You’ll never have to put a g ood book down!!!