Even after the bodies had fallen to the floor & the dreaded silence had filled the air, the emergency evacuation sirens were still left on - indicating the outbreak of more than just mankind's deadliest plague.

Soon a room was disturbed by a metallic ruckus as one of the escaped creatures clumsily knocked over a few things & swept a swivel chair with its extended limbs, hissing & grunting in surprise as it scanned the room for any movement.
Another creature soon joined the First, its mouth open with jagged, sharp teeth as it hissed & growled at the First.
The First flinched before growling & turning to look for a passage out.
The Second creature leapt up onto a metal desk, hissing & growling as it scanned the scenery below, waving its extended limbs in the air behind it.
From their entrance, a Third stood. It quietly stared at the picture before it, unlike the others whom were busy hissing & growling between each other as they trashed the place even further.

A tiny movement just out of the corner of the creature's vision alerted the Third & Second creature's attention. The Third silently watched as the Second, his brother, hissed loudly & jumped down off the desk, slowly approaching the few whimpers which were coming from a small metal cabinet.
The First chirped & watched from the other side of the room, titling his head as the scene began to unfold.

The Second growled as his mouth stretched into a toothy grin with a drooling, black tongue. Soon the creature was looming over the crying cabinet, with one last hiss, which turned into a roar, he ripped the door off its hinges & snatched the person inside. The creature hissed, growled & roared as it held the human tightly, shredding their stomach with its claws, blood & guts spilled out onto the creature & the floor as the human screamed.
The creature threw the bloodied body to the ground as it began to rummage through the intestines, digging its teeth & claws into its meal.

The Third creature observed silently as it stayed put. The First, however, shivered & spat in disgust, summoning its extended limbs as it climbed up to the second floor.