Full health is the kill threshold, no matter if you're a god or a demon!

You have entered a special space: Terra Realm.

[Heart of Terra Status: Charging]

Current charging progress: 0%

[Charging complete countdown: 60:00]

[Task prompt:]

1. During the charging period, the Terran realm will be continuously invaded by corrupted creatures from the abyss. Please protect the Heart of Terra until charging is complete. Once charged, the Heart of Terra will unleash a super purification wave, instantly eradicating all invaders and completely purifying the land!

Second, as time goes on, the strength and number of enemies will gradually increase. Each enemy you defeat will drop Soul Stones, which can be used to purchase defensive structures, barracks, arrow towers, and more from the Heart of Terra to assist in defense…

III. This space retains its exorcism dead zone effect. Please note that you only have one chance to complete the challenge.

As the system notification popped up, a fissure appeared on the southeastern edge of the platform. Soon, the first abyssal monster emerged from the fissure, followed by a second, a third... surging forth from the fissure like a tide towards the Heart of Terra in the center of the platform...

"Oh, I see. So you want me to fight a war to defend Terra?"

Previously, Liu Nian was wondering how to fight that LV? ??? level monster, but now it seems like he's playing a game similar to Billions.

This was not difficult for Liu Nian. Liu Nian was essentially a hero unit on this map, and he also had a large number of level 350 spider minions with him. Even without building any barracks or arrow towers, he could defend himself by using the portals in the four directions of the Heart of Terra to move quickly.

The first group of Abyss invaders emerged from the spatial rift that opened first in the southeast direction.

Those were dwarfs.

No, they used to be dwarves. Their skin was dark purple, covered with cracks, from which dark red light flowed... They looked exactly like the Abyss Dwarves that Liu Nian had dealt with in the third level of the Underdark.

Liu Nian breathed a sigh of relief.

This monster is much better than that disgusting thing before... That's good, that's good!

[LV155 Abyss Dwarf Infantry Legion]

The level 155 monsters aren't very difficult...

Most importantly, the enemies here—those abyssal monsters—are much more attractive than the corrupted guards from before… Liu Nian felt a certain psychological pressure when he started fighting.

The entire Abyss Dwarf Legion poured out of the spatial rift, numbering in the hundreds, and charged towards the platform along the purple landmass.

Liu Nian released his spider servants and sent them to march towards the dwarves.

The spider minions quickly rushed over, and once within range, countless white rays shot out, instantly piercing through the front-line dwarf infantry and killing them instantly!

The dwarven musketeers behind them began to return fire, but it posed little threat.

Soon, the first wave of abyssal dwarves was cleared out, and a large number of purple stones fell to the ground, which Liu Nian had his spider servants collect.

[Soulstones: Can be exchanged at the Heart of Terra. Current holdings: 230.]

Liu Nian placed his palm on the energy pedestal beneath the Heart of Terra. A semi-transparent interface popped up, listing the facilities available for redemption:

[Arrow Tower: 150 Soul Stones. Automatically attacks enemies within range, dealing physical damage.]

[Barracks: 1000 Soulstones. Spawns one Ascalonian Radiant Guardian (LV150, wielding sword and shield) every 30 seconds.]

[Roadblock: 30 Soul Stones. Blocks enemy advance; can be destroyed.]

[Repair Workshop: 200 Soul Stones. Automatically repairs damaged surrounding defenses.]

[Turret: 300 Soul Stones. Area-of-effect explosion damage; slow attack speed but high power.]

[Charge: 500 Soulstones. Increases the charging speed of the Heart of Terra by 5%]

[Summon Lanorno: 5000 Soul Stones, Ascalon Hero Unit, Level 200 Legendary Archer]

……

For now, all they can do is buy arrow towers and build roadblocks, which Liu Nian doesn't think is necessary.

The second wave of invaders soon appeared from the north. This time they were abyssal elves—tall and slender with dark purple skin, wielding longbows with arrows wreathed in dark purple flames.

【LV150 Abyss Elf Archer Legion】

As ranged attackers, they are slightly more troublesome to deal with than the Abyss Dwarves, mainly because the Spider Servants' range is not as far as that of the archers... However, the advantage in level quickly makes up for the difference in combat power between the two.

After the second wave ended, Liu Nian directly chose to consume 500 Soul Stones to speed up the charging speed of the Heart of Terra.

The third wave of invaders then appeared simultaneously on both the east and west sides.

[LV150 Abyss Heavy Infantry]

Liu Nian ordered his spider servants to split into two groups...

Next-

【LV160 Abyss Bomber】

【LV165 Abyss Giant】

【LV170 Nightmare Slayer】

【LV170 Energy Absorber】

……

Wave after wave of monsters emerged from the various cracks.

The number of cracks appearing simultaneously is increasing, and the types of troops are gradually becoming mixed...

Liu Nian also started to get busy, providing support everywhere.

Most of the monsters were dealt with easily, except for the combination of Nightmare Slayer and Energy Drainer, which was a bit troublesome. The main problem was the Energy Drainer, as it could absorb the energy of the Terra Heart, prolonging its recharge rate...

However, Liu Nian bought all the Soul Stones to charge the Heart of Terra, and finally got it fully charged in the 45th minute.

At that time, the entire space was filled with the invading figures of abyssal monsters. The spider servants' defenses had shrunk to a circle, compressed around the Heart of Terra, and countless abyssal monsters were densely packed and attacking the defenses...

At that moment, a voice announced, "Charging complete!"

The Heart of Terra suddenly lit up, and the golden light was no longer a soft halo, but a dazzling circle of light that gushed out from the core and spread in all directions.

Wherever the light passed, the abyssal creatures evaporated instantly, like dust blown away by the wind.

Even the spatial rifts shattered under the impact, turning into purple specks of light and dissipating. The twisted vegetation and damaged buildings on land also melted away in the pillar of light, as if they had never existed.

The entire Terran realm was filled with golden light.

When the light faded, the platform was empty, without a single monster.

The abyssal energy on land was completely purified, the purple land returned to its original earthy yellow color, and the twisted vegetation disappeared, replaced by tender green grass shoots.

Above, the Heart of Terra radiates a steady and warm light.

[Ding! Purification complete!]

Space began to tremble, and golden light erupted from the Heart of Terra... engulfing everything.

Liu Nian's vision blurred.

When he could see his surroundings again, he was already standing at the bottom of the deep pit.

The enormous fleshy monster—the Abyssal Energy Devourer—was gone. Only a thick layer of dried, rotting flesh remained on the platform, like a corpse drained of moisture, slowly turning into purple dust and dissipating.