After a few hours, the ground started trembling as they heard a loud 'boom' from the island. According to the information, there was another hidden monster that caused the island to sink.
And the effect was tremendous. After that loud explosion, the crack soon reached the shore as if they were going to fall.
Theo and the others immediately headed to the boat because the seawater began seeping, flooding the land.
Since the return trip was also dangerous, not many dared to stay on the island any longer. And even those who dared preferred to return together to conserve their strength.
After all, they had tried to find any clues about the island for a few decades and still found nothing. So, most of them had given up.
Only Theo's group could actually know the secret about this island. However, none of them was planning to say anything about this information.