NBC Offers Grimm Fans New Interactive Companion EBook XFINITY Posted on July 10, 2014 NBC Offers Grimm Fans New Interactive Companion eBook XFINITY Related posts: NBC Offers Free Grimm EBook With Grimm The Essential Guide SciFiPulseNet NBC OFFERS FREE GRIMM E BOOK WITH SEASON ONE Following Producer Assesses Season One And Looks Ahead XFINITY Supernatural The Official Companion Season 6 Book Review