Transcription: The next day we resumed our journey. There was a sudden change in the walls on either side of us. Instead of being coated with shining lava as before, they now looked more like living rock. We had arrived there after reaching an intersection of four sombre and narrow tunnels. The question that faced us now was, which one of them should we take? My uncle had no hesitation about the matter and pointed to the eastern tunnel. We entered it, trusting a chance it was the right one, and found ourselves in the middle of the Silurian period. Look! I shouted to my uncle, this is when the first plants an ...
