Chapter 722 Hope and despair!

Boom!

Various explosions and roars were heard in the formation!

The dozens of talismans thrown by Cao Xian seemed to be powerful, but they still failed to shake the green wall formed by the formation. At most, they only made the green wall shake slightly, without any signs of breaking.

Such a scene made Cao Xian's face turn pale.

He knew very well how powerful the talismans he stored were. Even if he faced so many talismans, he could not resist them. However, the green wall was as solid as a rock, which was simply despairing.

Fortunately, the earth dragon used by Cao Yuan temporarily blocked the green thunder that kept bombarding overhead, which made them secretly relieved.

The two spiritual weapons, a knife and a sword controlled by Cao Yuan, were also bounced out directly as if they hit an iron plate.

Seeing this, Cao Xian didn't understand that they were obviously in a desperate situation. If they didn't fight hard, they might not even have the chance to use their best tricks.

Cao Xian took a deep breath and said to Cao Yuan without looking back: "Eighth brother, hold off for me!"

After that, regardless of whether Cao Yuan agreed or not, he no longer cared about the offensive outside, obviously trusting Cao Yuan greatly.

Cao Yuan also understood something when he saw this, so he gritted his teeth and solemnly took out a palm-sized white jade talisman from the storage bag. Seeing this jade talisman, Cao Yuan's eyes were full of reluctance and hesitation, but when he thought of his own situation, his expression immediately became firm.

He bit his tongue hard and spurted out a mouthful of blood.

After the blood was spurted out, it was all sent to the surface of the white jade talisman under the wrapping of spiritual power, and then the jade talisman quickly absorbed it.

At the same time, when the jade talisman absorbed the essence and blood, Cao Yuan also immediately pinched his hands and frantically urged the spiritual power in his body, causing the jade talisman to suddenly turn blood red and emit a terrible breath.

"Go!"

Cao Yuan shouted with a pale face!

The jade talisman absorbed nearly 80% of his spiritual power, almost making his spiritual power directly exhausted.

With his shout, the blood-colored jade talisman shot out directly, and then suddenly turned into countless blood lights and exploded in the air. The countless blood lights did not dissipate, but spread out like sticky blood. In the blink of an eye, a blood-red circular cover was formed in the air, protecting Cao Xian and Cao Yuan firmly in it.

"Crack!"

At this time, under the bombardment of countless green thunders, the earth dragon above their heads also appeared cracks, and then it was completely shattered the next moment.

However, the blue thunderbolts only shook the blood-red dome a little bit when they hit the earth dragon, which was not like the blood-red dome that had a stronger defense than the earth dragon.

Seeing this, Cao Yuan and Cao Xian breathed a sigh of relief.

But Cao Yuan was more distressed. You know, he spent most of his fortune and used the influence of his family to get this jade talisman. It was his most powerful trump card. It was said that even the late stage of foundation building could not break this blood-red dome. Now it was used in this place. No wonder Cao Yuan was very distressed.

Cao Xian, who was next to him, was overjoyed. At this time, he took out an object from his storage bag without hesitation.

It was a three-foot-long bronze short spear, which looked rusty and seemed to be a very old object. It looked very simple.

Cao Xian's face was extremely solemn at this time. He held the bronze short spear flat in his right hand, and then hit his chest with his left hand. A mouthful of blood immediately spurted out of his mouth. The blood was all spilled on the bronze short spear, and then it was quickly absorbed by the short spear.

After spurting out a mouthful of blood, Cao Xian's face suddenly turned pale.

But he didn't care about it at all, and immediately began to chant.

As the bronze short spear slowly absorbed the blood, the bronze rust on the short spear began to fall off, revealing the original sharp and cold blade, and exuding a palpitating breath.

Cao Xian not only chanted in his mouth, but the spiritual power in his body was madly rushing to the bronze short spear, and the bronze short spear was like a bottomless pit, no matter how much spiritual power was injected into it, it could not be filled.

However, as a large amount of spiritual power was injected into it, the bronze short spear began to slowly float in the air, and then swelled against the wind, slowly turning into a giant bronze war spear more than ten feet long.

At this time, Cao Xian's face had already turned extremely pale, without the slightest blood color. He looked very listless, and his breath was also much weaker.

He endured the weakness brought by the exhaustion of spiritual power, looked at Wei Hong outside the formation with a cold look, then pointed his finger and shouted: "Cut!"

At this moment, the giant bronze war spear more than ten feet long suddenly exuded an extremely terrifying sharp breath. After Cao Xian's order, it immediately turned into a cold light and slashed fiercely in the direction of Wei Hong.

This bronze short spear is also Cao Xian's last resort attack method, and every time it is used, it requires all spiritual power and heart blood to activate it. Cao Xian will never take it out unless it is in such a desperate situation.

Therefore, looking at the bronze war spear that was slashing away, although Cao Xian's face was extremely pale, a glimmer of hope was revealed in his eyes.

He placed all his hopes of escaping on the bronze war spear, hoping to successfully break the formation.

However, Wei Hong, who was outside the formation, saw the actions of both Cao Xian and Cao Yuan, but he did not stop them.

At this time, he kept urging his spiritual power to let the blue thunder in the formation continue to bombard.

Even if the blood-red dome was tough, it still began to slowly become shaky under the bombardment of the terrifying thunder, and it seemed that it could not hold on for long.

Just as the bronze war spear was slashing wildly, Wei Hong, who had been watching coldly, directly threw out three self-destructing talismans.

Whoosh whoosh whoosh!

The three self-destructing talismans shot out violently, and then rushed towards the ten-foot-long bronze war spear.

After approaching, before the bronze war spear slashed down, the three self-destructing talismans suddenly exploded.

Boom!

Three loud bangs sounded in succession. The violent and terrifying explosion shook the entire formation in an instant. A terrifying air wave rippled out with the explosion, hitting the blood-red round cover and making it shaky. It seemed that it would break directly in the next moment.

The bronze war spear was even blown up and suspended in the air, and it could not cut down at all. The terrifying power of the explosion directly caused fine cracks on the surface of the bronze war spear, and the next moment it was blown away!