A mystery novel by an author involved in the production of puzzle-solving events. - Title: A Certain Author's Will - Author: Sho Fujisaki - Publisher: SCRAP Publishing - ISBN: 978-4-86373-001-7 - Price: 1,300 yen (excluding tax) - Content: A mystery novel by the author, who works for a puzzle-solving event production company. I bought it new and read it once. Please refrain from purchasing if you are concerned, as it is stored by a private individual. Thank you.