The group had to advance for one more hour before they finally found what was causing those tremors. At first, Sigma didn't recognize the silhouettes in the distance until Ed reminded him by shaking his shoulder.
"They are the green giants…" Ed said. "Why are they here… I thought they only lived in our area and in small numbers."
Sigma recalled those creatures that attacked the walls of Geolia. They were a bit weird since they were a bit fat and walked on two legs, but their bodies were green and slimy like lizards… as if that wasn't weird enough, they also had some massive clubs in each of their hands. Those creatures were like eight meters tall and weighed a lot… the sound of their footsteps, added to the weight of their clubs, caused those tremors.