The cages were made out of hardwood which could be found anywhere in the forest. If it were a normal adult man, or even a teenager with little body tempering realm cultivation, they would be able to break through the cage easily, but for children, something like this would not have been possible.
Lin Mu could see the traces of the cages being used extensively and there were even scratch marks on the cage which showed that whoever was imprisoned within them struggled a lot.
His spirit sense spread around and discovered two more cages kept inside the tents. But these cages were not empty. Each of the cages had a child trapped in it, both of them being boys of around six or seven years of age.
From their clothes Lin Mu could tell they were probably low born peasants and seeing their tan skin, they were probably from this region since they got more sunlight here than in the north.
