Zombies?(on hold)

The end of the class never arrived, instead, an emergency alarm blared over the speaker. The alarm was so loud that everyone's hands flew to their ears at an attempt to block out the noise. A muffled lady's voice took the alarm's place. I removed my hands to be able to understand her, "We are on lock down! Everyone lock your door and cover your windows! This is not a drill. I repeat this is-"
Her frantic yells turned into terrifying screams. Horrific screams with animalistic grunts mixed in. The intercom shut off with three beeps.
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Amber and her friends are thrown into a world they never imagined could've happened. Read to see what happens!!