Animal cursed

After a bus accident motor damage stand the group in a open townfield. All have no idea how dangerous out side really is and all looks as the teacher moves outside and looks whats happends. Before any can realizing whats happends, slides the teacher under the bus by bite from a dog and screams. The dog and the teacher was gone, the group looks afraid by the action and hopes that they all can alive comes out this.The world is affected by a curse that affects every animal. alive now group hurry