Bestiarium

Monsters aren't really real.....Right?

In bestarium, a group of friends, velocity, porfait, elextro, and mayday go out to a field trip to a cave and elextro decides to enter a huge hole to explore after hearing a muffled sound followed by porfait, mayday, and velocity. That was moments before disaster. Inside the cave there was nothing. Elextro looked around knowing something was in there with them. After nothing was found, they tried to escape but something caught them. Once they managed to escape with a few injuries, their class wasn't there anymore. After a long trip, they found their bus and went to school. After school, they went to alert the principal that monsters were real. But on second thought, Should they start a panic?