Phone and the Darkness

For English class, I was to write a short story for English class, and I came up with this since we had to start it with the line "A telephone was ringing in the darkness, a tiny, unfamiliar ring..."

A telephone was ringing in the darkness a tiny, unfamiliar ring as I was walking towards it in this deserted town. Once a vibrant town, now it's deserted after a biological plague had infested the whole population. I was out here to do some analysis. That was when I heard it rang. I walked up to it and picked up the phone. A distorted voice started to say "I am your shield, I am your sword. I know you, your past, your future." Suddenly, I felt a sweat going down my forehead. I asked "who are you?" and the voice on the other side hung up on me.

Next thing I saw were the dead who started to rise. I couldn't believe it, then I picked up a 12-gauge shotgun and started to blast them as they were going to claw me if I didn't shoot them. Most likely they were going to infect me with the plague. I had no choice but to run . However, one of them started to fire a pistol, so I had to avoid getting shot.

One of them threw something into the air and all of a sudden everything turned white. A figure appeared soonafter.