A slow unlocking progress bar in front of Song Jian slowly advanced, and the key to oblivion also flashed with various colors, as if he was cracking the code.

At this time, the Forgotten Key was no longer the black and inconspicuous appearance it had before, but filled the keyhole of the entire treasure chest like a brilliant flowing crystal.

Time passed minute by minute, the progress bar finally came to the end, there was a soft "click", the treasure chest opened, Song Jian took a look inside, and found a few items.

A skill book with gold wire trim and very delicate workmanship, exuding a faint purple-red glow.

Song Jian had a look of surprise in his eyes, but he didn't expect to open a skill book.

Pick it up and take a look.,This is a rogue profession-exclusive skill,"Forced Cooldown Lifted,After activation,All skills that have entered the cooldown state,All recovered,Can be used directly。

Forced cooldown removed: Exclusive skills for the Rogue class, which can eliminate the cooldown of all skills within 5 minutes after use; This skill has a cooldown of 15 minutes.

The thief profession has a lot of skills, and like the mage, it is a profession that completely relies on skills to deal damage, with this skill, the thief profession can completely burst out two rounds of damage in a row, and the combat power can be doubled in an instant.

In addition to this skill book, there is also a piece of gold, a piece of silver-quality equipment, and some miscellaneous items that can only be thrown into the store.

Song Jian glanced at this skill book, and directly chose the skill devouring, the original level of ten thousand sword tricks, the proficiency suddenly jumped forward a lot, Song Jian took a look, there is about one-fifth, that is to say, the level 10 ten thousand sword tricks, you need five epic skills, you can be promoted to level eleven.

After opening the epic treasure chest, Song Jian continued to touch towards the castle in the depths of the city, and occasionally encountered one or two lone monsters, he would go up and clear them, and with the terrifying damage of ten thousand sword techniques, the monsters encountered couldn't react at all, so they were directly killed in seconds, and there was no way to summon other monsters to besiege Song Jian.

Song Jian carefully experienced every change in the process of using the Ten Thousand Sword Technique again and again, this is the core skill of the only professional sword immortal, it takes a lot of time and energy to fully master it, this is not something that can be completed in a short time, Song Jian is not in a hurry.

Gradually, Song Jian slowly approached the castle in the center of the fortress, in front of the castle, there was an open square, Song Jian hid behind a five- or six-story auction house, looking towards the square.

The square is open, there are thousands of square meters, dense soldiers and zombies wandering in the square, they are holding rifles in their hands, and they are carrying long swords and cold weapons such as long knives behind them, some of them are wearing leather armor, and some are even wearing scale armor and chain mail.

Among these monsters, a tough warrior more than three meters tall, holding a Gatling multi-barreled rotary machine gun in both hands, with bullet chains on his body, wearing a special forces combat uniform, a war knife stuck in his waist, and a dagger tied to his lower leg.

This strong warrior is an extremely powerful boss at a glance, although he can't see his level, but the aura exuded by the dominant-level boss, Song Jian can still feel it.

If you want to enter the castle, you have to walk through the square in front of you, there is no second way to go, but Song Jian has already tested before, the weakest of these soldiers and zombies is about three meters, most of them are between five meters and six meters, the square is dense, and the distance between each other is probably not even one meter, in this case, even the top thieves have no way to pass through here.

"There is no way, but to be hard!" Song Jian pondered for a moment and then whispered to himself.

As soon as his mind moved, Song Jian's shadow suddenly became blurred, and after a violent shaking, two Song Jian, who looked exactly the same, appeared in place.

Sword shadow clone!

The fourth-level sword shadow clone can inherit 50% of the attributes of Song Jian's body, and inherit all the skills at the same time, but the inherited skills are only level 1.

After the clone appeared, it rushed directly towards the square, standing at the edge of the square, waving the long sword in his hand, dozens of spirit swords appeared, floating around the doppelganger, and with its swing, it smashed towards the monsters in the square.

Boom boom boom~

The first-level Ten Thousand Sword Technique enveloped a large area, causing hundreds of monsters to be damaged, and at the same time attracting the attention of more monsters, even the boss in the center of the square let out a roar, holding the machine gun in his hand, and rushed towards the clone in stride.

Bang, bang, bang~

There were already monsters shooting at the clone, and several blood flowers burst out on the body of the sword shadow clone, and then turned into black mist and dissipated in the air, and the qi and blood value plummeted.

Song Jian was startled, the attack damage of these monsters was strong, and he didn't dare to let the clone resist at all, so he hurriedly controlled the clone and rushed towards the alley behind him.

A large group of monsters were led over by the clone, and after a while, less than half of the monsters were left wandering around the square, and these were monsters that were too far away to be attracted.

Even the boss was led out by the clone, and after a while, the unique roar of the Gatling machine gun sounded in the alley, and the clone's qi and blood value plummeted.

"Be fast, the clone won't last long!" Song Jian's shadow jumped out like lightning, and the sword qi all over his body surged, and all of them surged into the sky-breaking sword in his hand in an instant, and the sword light bloomed.

Karmic Fire Red Lotus Ten Thousand Sword Tricks!

Song Jian rushed to the center of the square and swung his sword at the monsters blocking the gate of the castle.

In an instant, hundreds of spirit swords burning with dark red flames struck at these monsters like missiles, but Song Jian ignored them and rushed directly towards the castle gate.

At this moment, Song Jian felt that the connection between the clone and himself was suddenly interrupted, and he understood that it would not be long before the monsters and bosses who had been lured away would come back, and he couldn't help but be a little faster.

The monsters around the gate of the castle were staggered by the bombardment of the spirit sword, and just as they were about to rush towards Song Jian, a huge red lotus flower swirled and sucked them all into the center of the sword array.

Song Jian almost brushed the bodies of several monsters and rushed over, and the moment he entered the castle gate, the unique roar of a Gatling machine gun sounded behind him.

Sudden protrusion~

Suddenly, Song Jian felt a sharp pain coming from his back, and at the same time, the rocks on both sides of the castle gate around him were swept into debris, and the messy gravel was picked up in all directions, hitting Song Jian's face for a while.

Song Jian subconsciously pounced forward, bent over and rolled twice, and hid in the castle, the karmic fire red lotus sword array behind him let out a roar, and rows of experience points quickly appeared in the battle status bar.

The monsters behind him didn't seem to dare to enter the castle, and after Song Jian hid in the castle, the boss and the monsters who came back from pursuit lost their goals and began to wander again.

Soon, the karmic fire red lotus sword array disappeared, and Song Jian entered a non-combat state again, and at this time, he saw that his qi and blood value had decreased by more than three thousand points.

"It's really terrifying.,The monster here is too strong.,If you want to kill it.,I'm afraid you'll have to take a lot of lives to pile it up.,But if you can blow out the boss's weapon.,That's really it.。 Song Jian glanced behind the gate of the castle with palpitations, if the weapon of the BOSS really exploded, it would at least be of epic quality, and it might reach the legendary level, such a multi-barreled rotating machine gun was completely a strategic weapon in the war, and it could turn the tide of the battle in a region.

Song Jian thought as he walked along the path in the castle towards the depths, and he had a feeling that the bronze coffin that the mentor said should be in the depths of this castle.

……