"Dies illa, dies iræ, calamitatis et miseriæ, dies magna et amara valde, Dum veneris iudicare sæculum per ignem.__" (That day, day of wrath, calamity and misery, day of great and exceeding bitterness, When thou shalt come to judge the world by fire). Set in a universe that combines Dante's Hell with Milton's angels, HOLIEST follows the mistakes and delusions of Hell's prince as he falls into psychosis, believing that the Day of Wrath is upon him. The novel also features over twenty-three artworks by the author, who is a professional illustrator. Originally shared online in 2019 as a web series instead of a book, this heavily revised and expanded first edition of HOLIEST has new illustrations and new appendices including a glossary, a list of characters, full explanations of the structures of Heaven, Hell and Purgatory, expanded explanations of the Angelic Choirs, the three hosts, the nychthemera, and has updated maps of Hell and Pandemonium.