秘宝迷宮

From Author Wars - https://authorwars.com/publications/mi-bao-mi-gong-547154.html

Overview:

Title: 秘宝迷宮
Author: 菊地秀行
Year: 2006
Publisher: 実業之日本社
Binding: Paperback
Type: Novel
Title Reference: 秘宝迷宮
Notes: Data from Japanese Wikipedia
Title translates as "The Wealth Whodunit"