The Islet Mystery 66

The island guards who walked on foot inside the cave reached the exit frustrated. They did not see any signs of the old couple and the child.

"Let's go back! There may be an exit here, which we do not know. We could not fail Sir Ryan," one of the men suggested.

"I agree. We are only used to this route. There could be other passageways."

With everyone agreeing, they retraced their steps. Dividing themselves, some focused on the right and some on the left. Not far away from the shack, they spotted a crack on the wall. 

"Let's take a closer look! It could be another route towards the exit," a man shouted, focusing his light on the crack.

Everyone moved to check the wall opening. As one of them reached the rock wall first, he shook his head.