Starting from the camp site and ends with the southern Ras Al-Ras .It is was filled with a quantity of gunpowder salt with the intent to blow up the wall. Soldiers were digging the tunnel at night, when an old woman heard the sound of drilling , so she went to Sheikh Qarnas and told him about voice.after hearing identifying the voices him self, he knew that this sound is the sound were underground digging by the soldiers of Ibrahim Pasha . He devised a successful trick , he dug a tunnel in front of them and opened a small window overlooking the mine and brought a cat and held a priming in its tail and set it on fire.