Download or read book HPI: The Top Hat Demon & Other Scary Stories written by Paul Dale Roberts aka The Demon Warrior and published by Lulu.com. This book was released on 2018-07-10 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The HPI International (Halo Paranormal Investigations) adventure continues! HPI tackles the Top Hat Demon of 27th Street and other strange entities of the night! The HPI team are warriors against the dark forces of the supernatural! Read about it here!