Hikers Find Hidden Mountain Cave, What They Found Inside Left Them Speechless

Ear-deafening

Brody looked at the outside light moving into the tunnel behind them and was already walking toward it when suddenly a loud whining sound arose from deep within the mountain.

It was high-pitched and almost ear-deafening. “That was absolutely not the wind,” Brody said as he felt the hairs of his arm stand up straight.