"Hellboy: Into the Silent Sea" by Mike Mignola is a hardcover graphic novel published by Dark Horse Comics in 2017. The book, with 56 pages, features the beloved character Hellboy and is part of the modern US Comics tradition. The cover art is done by Mike Mignola and Dave Stewart, showcasing their unique style. With a mix of horror, sci-fi, and suspense genres, this comic is a must-have for fans of the iconic Hellboy series.