"And for us unlucky ones..."

Upon saying this, Guo Yuting couldn't help but sigh and pointed to the ground:

"Of course, we're here to collect soil samples."

"...."

Xu Yun's mouth twitched slightly, feeling as though the juniors before him had suddenly turned into debt collectors...

Actually, thinking about it, it made sense.

The extermination operation organized by Xu Yun earlier probably wasn't particularly high in actual cost, but all the sunk costs and risk costs weren't low at all.

So after creating big news,

Ke Da naturally took the opportunity to exploit his weakness, chasing him to his lair to root out any future problems.

To prevent future troubles and avoid ending up with all the effort in vain.

Similarly, since they needed to exterminate cockroach eggs, Ke Da naturally wouldn't miss the opportunity to collect samples.

After all, it's easy to talk about finding high-density wild cockroach survival soil, but it's actually quite troublesome to locate.

Especially with nests that have accumulated over several years or even decades, it may be disgusting, but its research value is indeed high.

It's like coffee beans.

Currently, known substances in a single coffee bean exceed 4,000 types at the ppm level, with over a thousand still unidentified; we just know they exist.

It's the same principle.

A fist-sized piece of cockroach nest soil conservatively could contain tens of thousands of special substances, maybe something remarkable could be discovered?

So from an academic perspective, this approach evidently has no problem.

But as it is,

it's tough for juniors like Guo Yuting who are in the biology department.

Seeing the resentful faces of the juniors, Xu Yun quickly put his hands together in apology:

"I'm sorry, I'm sorry. How about this: my project group is looking for help to compile some regular files this weekend."

"An hourly rate of 25, two full days on the weekend, eight hours each, with lunch included. Are you interested?"

Upon hearing this, the trio of Guo Yuting immediately brightened up:

"Really?"

Ke Da enrolls only 2000 students each year, many of whom come from low to middle-income families, with a monthly living allowance of only 800 to 1200.

Thus at Ke Da... or indeed most C9 universities, taking weekend part-time jobs is a common practice.

The hourly wage for part-time jobs in Lu Prefecture usually ranges from 8 to 12, with some better ones reaching 15.

Anything higher usually involves jobs like tutoring or mascot costumes, which are rare and hard to come by.

Getting 25 an hour for compiling files in a lab, even just for one weekend, puts 400 in pocket.

For Guo Yuting and her friends coming from ordinary families, this is undoubtedly a very substantial sum.

So they quickly discarded whatever playful bit of resentment they had and began sharing everything they knew with Xu Yun.

Of course.

Offering such a 'high salary' wasn't Xu Yun being generous with others' resources or squandering funds.

According to Ke Da requirements,

The hourly wage for compiling data in a regular BSL-3 laboratory starts at 25; it's just that this duty had previously been covered by Qiu Sheng.

After calming down the juniors, Xu Yun then asked:

"Xiaoguo, did you collect samples this morning?"

Guo Yuting nodded, pointing to a small sealed box beside her, and replied:

"We just came back from the pipe outlet at Kai Zhen South Road and collected four samples in total."

"The shallowest is 1.5 meters from the surface; the deepest is nearly ten meters, all large cockroach nests."

Xu Yun nodded slightly, then pointed to the shaft in front of him and asked:

"What about this one?"

"This one..."

Hearing this, Guo Yuting's expression turned a bit more serious:

"We just arrived here not long ago, and started dewatering and trenching only ten minutes ago. The foreman in charge of pipeline repair is currently inspecting the situation below."

"If there's no problem with the pipeline, we'll find a suitable node to collect soil samples, but..."

Xu Yun glanced at her and asked:

"But what?"

Guo Yuting gestured around and pointed to the southeast gate, saying:

"But unlike other nodes, this node is the biggest and also the oldest sewage discharge node at Ke Da."

"During the cockroach extermination, the number of cockroaches emerging from this area was the highest."

"So unsurprisingly, there should be a very large cockroach nest below, or perhaps the biggest cockroach gathering point in Ke Da."

"A nest?"

Xu Yun blinked, looking thoughtful.

Though in reality, it's been less than a month since the cockroach extermination.

For him, the actual time span has exceeded a year, and some details have become blurred.

However, with Guo Yuting's reminder, he did recall:

The main battlefield for cockroach extermination was set in Guo Moruo Square, and the largest group of cockroaches did seem to appear in this area.

Could it be that the reward given by Halo...

Is still related to the previous cockroaches?

Xu Yunjian pondered for a moment, then pointed to the basketball court not far away and said:

"Xiaoguo, does the pipeline from this shaft pass under the basketball court?"

Guo Yuting glanced toward the basketball court and shook her head, saying:

"I can't quite remember since I don't understand the construction plans; I just remember this is a node, with what seems like three..."

Before Guo Yuting could finish, a voice with a Northwestern accent came from beside them:

"There's a pipe below the basketball court, and it's a medium-sized sewage pipe."

Xu Yun and Guo Yuting turned their heads in unison to see a maintenance worker climbing up a ladder.

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