Hitman #13

Tommy Monaghan blazes away with both guns amid a flooded, glass-shattered aquarium setting, sea lions silhouetted in the water behind him — it's a gloriously chaotic image that captures everything fun about this Garth Ennis and John McCrea series. The story arc "Zombie Night at the Gotham Aquarium" kicks off here with Part One of Two, promising exactly the kind of darkly absurd mayhem the title suggests. McCrea's cover work is kinetic and confident, with muzzle flares lighting up the watery chaos in a way that makes this 1997 DC issue genuinely hard to put down unread.