What is happening?

The Virus

Austin hesitated because he didn't know who it was. I(Jason) replied with, "answer it it will be fine." Austin said "ok." He answered the phone and put it on speaker, and said "hello." Just then we heard a big boom sound, as soon as we heard it Austin hung up, and said "what do you think that was?" "I don't know" I replied. Just then Collin, Emily, Cole, Nahum, Sydney, and Erin walked in, and said "what was that?" Austin and I replied with "we don't know" just then Nahum said "I need to go take pictures for the school yearbook this year." Nahum went upstairs with the rest of us, he said "bye guys" So Nahum was taking pictures and then zombies broke the window. Nahum screamed "Woah Woah Woah Whoa!" (Movie quote from central intelligence). This was no time to talk Nahum said to himself "I have to warn the others." So Nahum ran to me (Jason) first. Nahum said " we need to go" I said "ok." And then they grabbed the others and went to the janitors closet and hid. Erin,Collin,Emily,Cole,and Sydney asked "what is going on?" They all screamed at the same time. Nahum said zombies broke the window. To be continued