WRITTEN BY MIKE CAREY; ART BY PETER GROSS & RYAN KELLY; PAINTED COVER BY CHRISTOPHER MOELLER In stores April 23. Part 2 of the epic 5-part storyline "Naglfar." Sailing beyond heaven, the ship made of dead men's fingernails encounters unborn universes, skeletal angels and deadly tensions among its mismatched crew members. Meanwhile, Lucifer confronts his brother Michael and they embark on a very different journey.