Holding this finished bomb, Qi Lin was like a statue, squatting there motionless, this squatting was two hours.

Observing and summarizing the activity patterns of the spider mother was the only thing Qi Lin did during this time.

An excellent sniper, in order to have a chance to pull the trigger, often needs to maintain a posture for several hours, more than ten hours or even a few days - now Qi Lin has already regarded himself as a sniper staring at his prey, and the bomb in his hand is a sniper rifle that is fatal with one blow, but only one bullet.

In the past two hours, a total of four teams of servant spiders have entered, one team of servant spiders has brought new food to the spider mother - a pile of fresh low-level mutant creatures corpses, while the other three teams of servant spiders are carrying the spider eggs released by the spider mother and do not know where they have been transported.

In this process, three unlucky servant spiders were swallowed by the spider mother, and the other, an even more unlucky servant spider, was unable to dodge when the spider mother moved her body slightly, and was directly crushed into a puddle of paste.

Qi Lin found that in addition to the ventilation hole he fell into, there were at least two or more exits in this cave, because the four teams of servant spiders took completely different routes when they came in.

As for the activity rules of the spider mother, Qi Lin also summarized it a little bit.

Each time a spider lays eggs, it takes about half an hour to lay eggs, and within half an hour, it can produce about 60 eggs, that is, an average of one spider egg is expelled every 30 seconds.

After each egg-laying, there is a rest interval of about ten minutes, during which the mother will sometimes eat, sometimes lie motionless and rest, and sometimes move its bloated and huge body a little.

When the ten-minute rest time arrives, it is another half-hour ovulation period.

According to this rule, if Qi Lin wants to send the bomb into the body of the spider mother, the only way to seize the ten minutes of rest of the spider mother is to seize the spider mother's ten minutes of rest, and it is best not to have the servant spider come in to disturb him during this time.

Qi Lin waited for this opportunity for two hours.

Finally, the mother produced the last egg of this ovulation period, and her huge body trembled slightly, and then pounced on the corpse of the king spider that was almost eaten.

In this process, due to the sinking of the abdomen, the spawning opening in the abdomen of the spider mother is almost so low that it is close to the ground.

"It's now!"

Qi Lin gritted his teeth, turned from static in an instant, and rushed towards the mountain-like spider mother with the bomb, that posture was like a terrorist who carried out a suicide attack.

Pulling the delay fuse of the detonator, stuffing the reagent bottle filled with explosives into the egg-laying process, and then slashing at the tender flesh near the egg-laying mouth without a carapace, this series of actions was completed smoothly, Qi Lin immediately rolled on the spot, and then regardless of the embarrassment of the posture, he quickly moved away from the spider mother with his hands and feet.

The vital place was attacked, the spider mother was faintly in pain, and the egg-laying mouth couldn't help but shrink for a while, and it was this contraction, under the action of atmospheric pressure, the glass reagent bottle "popped" and was sucked into the depths of the spider mother's body-

"Bang-"

A dull explosion sounded in the spider mother's body, and the spider mother's huge body stood still for a moment, and then it bounced directly off the ground and slammed into the top of the cave!

"Boom !!!!"

The roof of the cave collapsed in an instant, and countless pieces of rubble and clods of earth fell, revealing a starless night sky overhead.

"What a tenacious vitality!"

Looking at the clump of Roshan twitching wildly in front of him, Qi Lin once again retreated to the cave wall where he had originally settled, so as not to be affected by the struggle of the spider mother before she died.

The bomb that exploded in the body directly took away two-thirds of the spider mother's health, and because the organs and tissues in the body were completely destroyed by the explosion, the remaining health of the spider mother was also declining at a very considerable rate.

Qi Lin couldn't help but feel a little proud in his heart, this is the power of wisdom and strategy, human beings have never had sharp claws and terrifying brute force, but the reason why they can become the highest creatures on the earth depends on - that is, brains!

According to the speed at which the spider mother's health is passing, there are still five minutes at most, and this E-level boss will die in Qi Lin's hands.

At the same time, a dense rustle had already sounded outside the cave, and even the car-sized king spiders appeared on the edge of the cave's collapse.

Countless servant spiders poured into the cave - some jumped in directly from the gap that the spider mother had knocked open, some crawled in through the original entrance of the cave, and some dug a passage directly through the cave wall, Qi Lin, what he had to do now was to race against death...... Of course, this Grim Reaper is not aimed at him, but the one who is harvesting the life of the spider mother, as long as Qi Lin can hold on until the spider mother is completely dead, then these king spiders controlled by the spider mother, as well as the servant spiders that are indirectly controlled by the king spider, will stop all at once, like puppets with broken strings.

……

For the first time, Qi Lin felt that five minutes was so long.

He led the swarm of spiders chasing him to circle around the dying mother in the cave with difficulty, and at the same time used the mother's constantly tumbling body to crush as many of the pursuers behind him as possible, but despite this, the number of spider swarms chasing behind him did not decrease at all, but increased.

What's even more troublesome is that in the process of Qi Lin going around in circles, from time to time, there will be servant spiders falling from the sky, or coming out of the soil at his feet, which can be called "ambush from all sides".

Qi Lin has a hunting knife in one hand, a hand shovel, and a bow left and right, and several servant spiders die under his hands every second, but the servant spiders that have been killed one after another are killing more and more, if it weren't for the crazy rise in the experience bar, Qi Lin would have to wonder if the servant spiders he just killed were not dead.

Not only did they not kill, but it is estimated that these spiders are all earthworms, and they split one in half, and immediately pounced on two more, split two more, and four more came up......

Just when Qi Lin was scarred all over his body, and his rapid recovery speed could not catch up with the speed of his injury, and he couldn't hold on in the next second, the attack of the entire spider swarm stopped without warning.

"Final...... Finally...... Call...... Dead ...... Call...... Finish...... ......"

Qi Lin gasped and looked back, only to see the spider mother's huge body flipping over, eight degraded arthropods curled up together, motionless, and the dim moonlight projected on the spider mother's body through the gap in the cave, with a trace of palpitational breath.

The entire spider colony, whether it was the king spider or the servant spider, froze in place as if they had collectively dropped the thread, and next to the body of the spider mother, a needle glowing with purple light lay quietly.