Banging could be heard from a small air vent above, and a string exiting it wound tight pulling pins from a neatly hidden mechanism which sent down several cleavers like little guillotines, lopping off hands and heads of zombies coming through the larger vents. More banging could be heard as the kid began to move through the vent, following a strained sound of metal: the bottom giving out. The kid fell through the vent with a yelp, landing square on the nearly bitten kit.