The "Invincible" series by Kirkman (Walking Dead) and artists Ryan Ottley (Haunt) and Walker (Irredeemable Ant-Man) features the protagonist Mark Grayson. In earlier issues, teenager Grayson developed superpowers and fought crime with his father, the hero Omni-Man (later revealed as the advance scout of an invading alien army). In this volume, which collects issues 91-96, Grayson has been depowered by an illness, and Kirkman focuses instead on the series' large cast of supporting characters, especially on the relationship between the heroes Monster Girl and Robot, who had previously been trapped in another dimension together. Verdict The numerous characters are realistically distinct from one another, and Kirkman adroitly sprinkles humor throughout a mostly serious story line. The cartoony artwork keeps the story from seeming too heavy, while colorist John Rauch imparts visual depth through a pastel palette that is reminiscent of art nouveau. Longtime series fans will not be disappointed here, but the numerous backstories will make it confusing for new readers. Recommended only with the rest of the series.-Robert Mixner, Bartholomew Cty. P.L., Columbus, IN (c) Copyright 2013. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.