Several bands over the course of rock & roll history have worked an ongoing mythology into their records: Jamie Hewlett's elliptical story line told within and between the albums and videos by Gorillaz, for example, or the freaky apocalyptic science fiction plot line, complete with lyrics in a made-up language, that was at the heart of French prog rock outfit Magma. In the midst of their career, however, the neo-prog alt-metal outfit Coheed & Cambria did something quite possibly without precedent: their primary story line, a multi-generational blood feud between three families...