"In Keeping Secrets of Silent Earth: 3" is the second studio album by the American rock band Coheed and Cambria, released in 2003. The album is part of the band's larger narrative known as the Amory Wars, which tells a science fiction story through its lyrics and artwork. It features a blend of progressive rock, post-hardcore, and pop-punk elements. The album includes popular tracks like "A Favor House Atlantic" and "The Crowing," showcasing the band's signature sound characterized by intricate guitar work and dynamic vocals. It received critical acclaim and helped solidify Coheed and Cambria's place in the rock music scene.