The Walking Dead Vol. 3: Safety Behind Bars review. Classic Game Room presents a CGR Comics review of this fantastic book that’s even better than its predecessors. Robert Kirkman and Charlie Adlard create a world with dangers coming from other humans just as much as the undead. CGR Comics THE WALKING DEAD VOL. 3: SAFETY BEHIND BARS review takes a look at the improved art and the extreme angriness of one of the characters.