Cover Illustration Reveal! – The Riddle Box G. Derek Adams Uncategorized October 7, 2013 1 Minute LEAKED. Cover art for new Spell/Sword novel, THE RIDDLE BOX. T-shirts will be available via Society6 shortly. Share this:TwitterFacebookTumblrRedditLike this:Like Loading... Related Published by G. Derek Adams Author of Spell/Sword. Trouble maker. View all posts by G. Derek Adams Published October 7, 2013