Suddenly, something within the room started moving very fast towards them.
It got closer and closer, and then at a high speed it passed through the barrier.
There was a splash, as the barrier was breached, and the thing flew through the air.
All the members of the group managed to dive out of the way, and the thing hit the floor.
Immediately, it started shuffling around, and gasping sounds could be heard from it.
It was... a shark.
The realisation hit the entire group now.
The room in front of them was filled with water, and something in that runed doorway was keeping their current location from being flooded entirely.