As mentioned in previous posts, Suehiro Maruo's most recent Edogawa Rampo adaptation, Caterpillar (芋虫 - Imomushi), is being released as a collected hardcover book. Turns out that it was released this week in Japan by EnterBrain. The cover features a beautiful painting, original to this release.
On sale for 1,260円. You can find more details on the EnterBrain site.