Seeing the stone statue of Lu Xianren, Yulin was pleasantly surprised, he roughly estimated the mutual position of this gap and the stone statue from the gap, and he didn't care about greeting Hu Niu and them, so he ran out of the cave in a hurry, went to the top of the cliff and jumped down from the top of the cliff, and ran to the stone statue of Lu Xianren in a few steps.

This time, Yulin carefully inspected the rock wall behind the stone statue from the front of the stone statue and the left and right sides again, and strangely did not find the slightest trace of stone cracks.

Yulin was very strange, wondering if he had hysteria just now, and his heart was even more complicated.

Yulin jumped onto the bottom platform of the stone statue, turned behind the stone statue as he had taken refuge for the first time, and looked up again, and this time finally found that there was a stone crack diagonally above the head of the stone statue, only about half a foot away from the shoulder and neck of the stone statue. This stone crack was blocked by a slightly protruding stone in front of it, and Yulin didn't see its existence in front of the stone statue just now, left and right directions, which is really a clever layout! Yulin's heart turned around, and he had a plan.

Yulin took out the ancient sword, cut his fingers, and dripped blood on the sword again, and when the ancient sword was red and bright, Yulin raised his sword and swiped lightly above the head of the stone statue, and carved a circle about a foot and a half square on the stone.

But the stone wall was high from the base of the stone statue, and Yulin had to stand on tiptoe to barely reach it when he raised his sword to carve. Yulin had to jump down from the stone statue and find a stone to rest at his feet, Yulin stood on the stone and raised his sword again to cut it vigorously at the carved circle.

What made Yulin even more pleased was that the rock wall was not thick, and with the strength of his hand, Yulin judged that the stone wall was about more than a foot. Yulin cut diagonally along the circle, cutting the round rock into a columnar platform that gradually thickened from the outside to the inside.

If you want to say that the sword is really a divine weapon, Yulin only used a little force, and the sword cut the stone wall smoothly like a knife cutting tofu. Yulin cut the stone wall along the line, pushed the stone wall with his hand, but did not move, then inserted the sword into the stone wall deeper, and cut it again, and so on two or three times, and when Yulin pushed the stone wall harder, the stone wall really moved twice!

Yulin was overjoyed, thinking that the stone wall had been cut through, so he stood in a T-shaped step, secretly recited the secret words of the heartless, and lifted a stone wall with strong internal force, only to hear a rumbling, the stone rolled into the hole at once, followed by the surprise screams of the tiger girl and others.

Yulin looked closer to the entrance of the cave, and the tiger girl jumped down and landed on the shoulders of the immortals, and the tiger girl squeaked twice, twisting and jumping excitedly! General Chungmu also shrugged his nose! Greedily breathing in the fresh air outside, I couldn't hide my excitement.

Yulin put away his sword, stepped on the stone wall with one foot, and climbed the edge of the cave with one foot on the stone statue, and with a little more force on his feet, his body had easily jumped into the hole.

Yulin then found the stone that rolled to the side, only to see that the stone was only more than half a foot thin, and the thickness was only less than two feet, the cutting edge was smooth and delicate, one end was thin, and the other end was thick, Yulin took out the sword again, and took advantage of the slight decrease in the edge of the sword, so he dug two holes that bent inward at the thick end, the size was just enough to stretch into the arm, and after several cutting tests, Yulin withdrew the sword, inserted both hands into the hole, lifted the stone with a little force, and recalled the tiger girl who was still excited outside with teeth and claws, and then put the stone in its place, It is so tightly fitted that it leaves no trace! , this is to install a "stone door" at the entrance of this cave!

This stone door is in the shape of a cone, it can be opened from the cave with just a force, and it can also be opened by pushing it from outside the hole, but first, the opening of the cave is located behind the stone statue, and there is a protruding stone to block, it is difficult for outsiders to find the clues, and secondly, even if someone is lucky enough to touch the stone door, if there is no skill like Yulin, it is difficult to open, not to mention, if the stone door is blocked with heavy objects from the cave, even if the gods outside have no hope of opening.

This is truly a door made in heaven, a safe door that is ingenious!

Hu Niu was still excited, and said: "This cave entrance is difficult for outsiders to find, and it is even more difficult to enter. If you come outside, you can no longer climb the cliff, just install a rope ladder at the entrance of the cave, and you can climb the ladder from the stone statue into the cave! ”

"Hmmm! You think very well, we only need to guard the entrance of the cave on both sides, and there will be thousands of troops and horses outside who will not want to come in, such as storing food and water in the cave in advance, even if it is trapped for a long time! ”。 Yulin also said happily.

"That thousand corpse fragrant flowers like cold and dry, like water and fertilizer but not very drought tolerant, since it can grow in this cave for more than a thousand years, and is so luxuriant, I think there must be a water source in this cave!" , Tiger Niu analyzed.

Yulin said: "I also thought of it, and I was about to explore, why don't we go to the various branch caves to explore one by one, or we can really find the water source."

"Okay, let's do it!" Before the words fell, the tiger girl had already jumped out, and the eagle flew after her.