The dry *click* of the empty chamber was the loudest sound in the underpass.Mac didn't pause to process the lack of recoil. In a fluid, savage arc, he smashed the heavy steel slide of his useless pistol into the nasal cavity of the lead runner. Bone collapsed with a wet crunch. The creature stumbled, but the sheer, compressed weight of the mega-swarm behind it shoved the body forward, a wall of thrashing limbs and snapping jaws violently forcing Mac back into the pitch-black throat of the concrete tunnel."Get the kids up the structural pillar!" Lola screamed from the dark behind him.She lunged forward, the iron crowbar whistling through the dark. The blunt hook caught an infected woman across the throat, crushing her windpipe, but two more took her place, their fingers clawing frantically through the air."Isaac! The inspection ladder!" Mac roared, dropping the empty sidearm and drawing his five-inch combat knife.He stepped into a low, lethal stance, his blade carving through a th