Download or read book HPI: Seeking the Unknown written by Paul Dale Roberts & Deanna Jaxine Stinson and published by Lulu.com. This book was released on 2018-12-10 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: HPI International (Halo Paranormal Investigations) sets out for the unknown. Their cases are recognized by Travel Channel's Ghost Bait and Travel Channel's Ghost Adventures in the episode called Crisis in Oakdale. HPI with Paul and Deanna are now in Facebook commercials, Facebook advertisements and on Regional Transit lightrails and billboards in the Sacramento area.