I don't know if my past self killed this Mirror Thief, and if so, what method was used.

Time flew by quickly; in a moment, the Shadow Dance would end.

He glanced at the pet space. He simply didn't have enough time to summon all those pets.

What unconventional tactics were available? Nie Yan thought of special items like the Silken Spider Ring and the Jumper Ring. Mirror Thieves generally didn't use these things because their thinking couldn't reach the level of humans.

An idea was born in Nie Yan's mind. He gritted his teeth, deciding to try this method. Anyway, he had successfully advanced to Holy Shadow Dancer. Even if he died here, the main system wouldn't take back his title.

Nie Yan used the stealth effect of Shadow Dance to slowly approach the Mirror Thief, getting closer and closer.

The distance between them gradually closed to about five or six yards.

The Mirror Thief, who was walking around, suddenly became alert and looked around.

Nie Yan quickly held his breath. Without any movement, his stealth could reach over 1200, three times his usual amount, so he wouldn't be detected under normal circumstances.

The Mirror Thief searched for a moment but didn't find Nie Yan and returned to his original state.

Just then, Nie Yan suddenly burst forth, pouncing on the Mirror Thief, the Zennarde's Sword stabbing fiercely towards the Mirror Thief's back.

Just as he was about to hit the Mirror Thief, the Mirror Thief suddenly moved aside, raising the Zennarde's Sword to block Nie Yan's attack.

Nie Yan's attack didn't end there. He delivered an elbow strike with his right hand, hitting the Mirror Thief's chest.

The Mirror Thief dodged to the side and launched a backstab with a reverse grip, stabbing towards Nie Yan's back.

Nie Yan and the Mirror Thief exchanged several blows in an instant. Nie Yan could still dodge the Mirror Thief's attacks for a short time.

The Mirror Thief suddenly swung his sword, slashing towards Nie Yan's head.

Rapid Retreat!

Nie Yan's speed suddenly increased, retreating several steps. The Mirror Thief's strike missed. Before the Mirror Thief could retaliate in any way, he extended his left hand and shot out a strand of spider silk, which stuck to the Mirror Thief's hand.

The Mirror Thief's left hand was pulled by the spider silk. Just as he was about to raise his left-hand dagger to cut it off, Nie Yan flicked his finger, picked up the spider silk, activated the Jumper Ring, leaped over the Mirror Thief's head, and pulled the Mirror Thief's right hand behind its back, making it unable to move.

The Mirror Thief wanted to turn around, but Nie Yan ran around the Mirror Thief quickly. The spider silk wrapped around the Mirror Thief more and more. Although the Mirror Thief cut some of it off with its dagger, the remaining spider silk still bound it tighter and tighter, eventually rendering it completely unable to move.

Seeing the Mirror Thief bound, Nie Yan pounced on the Mirror Thief's back and performed a Spine Break.

The Mirror Thief entered a crippled state.

Elbow strike, kick, backstab!

Nie Yan unleashed a series of combo skills, erupting with powerful output, knocking the Mirror Thief to the ground.

The Mirror Thief fell to the ground, its body slowly disappearing, dropping a piece of emerald green rhomboid crystal, only about the size of a thumb, emitting a green glow, but with some signs of fracture at the tail end.

Nie Yan picked up the rhomboid crystal and looked at its attributes.

Shattered Divine Spark: Divine object, no attributes, quantity 15.

Nie Yan carefully examined this Shattered Divine Spark. Apart from being able to feel the powerful, restrained power contained within, it had no other additional attributes.

Divine Spark?

Nie Yan frowned. In those ancient books, he had seen descriptions of Divine Sparks. A Divine Spark was something containing divine power within a god's body. The stronger the Divine Spark, the stronger the divine power, similar to the crystal cores within the bodies of creatures like Darkwing Dragons, but Divine Sparks were definitely much higher-end than crystal cores.

What does this Shattered Divine Spark represent? What is it for?

Nie Yan's heart was full of doubts. This might be a trigger item for some quest. Since it was a divine object and of a high grade, Nie Yan didn't dare to neglect it and put the Divine Spark into a corner of his backpack, waiting to see what it was used for in the future.

In addition to this Shattered Divine Spark, Nie Yan had a new skill in his skill bar: Summon Shadow Assassin.

Shadow Assassin: Can summon a Shadow Assassin mirror image, whose attributes are 130% of your own, lasts for 2 hours, skill cooldown time is five natural days.

This Shadow Assassin was the Mirror Thief he had just killed!

It possessed all of Nie Yan's skills, and its attributes were 30% higher than Nie Yan's. It just needed Nie Yan to control it with his mind, so it wasn't as flexible as his main body.

The Mirror Thief's strength should not be underestimated; its combat power was very strong. The summoning time could last for two hours, enough for Nie Yan to do many things. With the Shadow Assassin as such a powerful aid, it could even turn the tide of battle at critical moments. Moreover, Nie Yan could have the Mirror Thief do many things. It would know any skill that Nie Yan knew! The Mirror Thief itself only had ten backpack slots. Although not many, Nie Yan was already very satisfied. After all, Nie Yan didn't expect the Mirror Thief to help him transport much stuff.

The harvest was very good. Nie Yan searched inside the Fortress of the World's Heart for a long time. The surrounding walls were covered with various reliefs, mostly telling the story of the war between the gods. The gods, in order to compete for territory and followers, did not hesitate to start wars, eventually all heading towards destruction, leaving only a few gods alive, including Zennarde, the Dragon King, Krow, the God of War, and so on. They continued to rule this world, until they also fell one after another. The war between the gods never stopped.

Nie Yan walked along, looking at these murals. At the end of the story, the Divine Sparks of those dead gods were shattered into fragments and scattered in the human world.

Nie Yan really wanted to know what these Divine Sparks were used for, but there was no description on the murals, no useful information. Did he have to collect the remaining Shattered Divine Sparks in order to trigger the quest?

Regarding the function of the Divine Spark, Nie Yan could only guess randomly. He would go back and check the data, he thought to himself.

Confirming that there was nothing else in the World's Heart, Nie Yan returned the way he came, walked out of the World's Heart, and then jumped down, falling from a high altitude. After descending for about five minutes, Nie Yan used Feather Fall to decelerate, landing steadily on the ground.

After advancing to Holy Shadow Dancer, Nie Yan felt completely different from before. Between raising his hands and feet, there was a feeling full of power. It was estimated that there should be no problem killing Tier 4 creatures. He should find a Tier 4 monster to test his skills. He still had to test it to know what his strength was now.