The World Ends In 27 Days

Zhiyi calculated the usable volume. "Three million liters isn’t enough for four years if it supplies sanitation, cooling systems, food production and mechanical equipment."

Zeyu’s amusement disappeared. "I thought that sounded like a lot of water."

"It is a large amount for drinking. It isn’t large when the same supply must keep the shelter functional."

Shichen drew a line from the reservoir to a series of smaller chambers. "The original design included greywater recovery. We can expand it, install atmospheric collection and use the hotel pools as secondary storage."

"The pools are above ground," Zhiyi pointed out. She located them on the site plan beneath the central courtyard, where the upper structure would remain exposed to the sun.

Shichen drew a line around both pools. "We’ll enclose them and incorporate the surrounding rooms into the protected structure."

"They’ll still absorb heat through the floors and walls above them. The additional cooling demand may exceed the amount of water they provide," she countered.

"Not after we fill the surrounding rooms with insulation and seal every exterior opening." Shichen brought up the structural section and traced the barrier he intended to create around the pool deck. "They’ll effectively become buried reservoirs inside the building."

Zhiyi studied the proposed enclosure.

That addressed the thermal exposure, but not the additional weight the pools would place on the lower structure.

Zhiyi examined the section.

The pools were located one level beneath the central courtyard. Converting them would add another 1.2 million liters, but the weight would shift across a structure designed to distribute occupied loads rather than store water continuously.

"Show me the support columns," she said.

Shichen changed plans immediately.

He didn’t ask why she needed them. He moved three structural overlays into place and stepped aside so she could see the complete load path.

The others watched while Zhiyi traced the columns from the buried pool deck into the foundation.

"Water can remain in the eastern pool," she said. "The western pool should hold dry supplies."

Shichen frowned at the drawing. "Why?"

"The western retaining wall is adjacent to the vehicle ramp. If the soil shifts when the temperature rises, the wall takes lateral pressure from the slope while the pool adds permanent internal load. The probability of failure remains low during the first year, but we need the structure to survive four."

"How low?" Shichen asked, his brows furrowing the more Zhiyi continued to speak.

"Without current soil-density measurements, between nine and fourteen percent," she replied.

"Nine percent doesn’t sound low when the result is being crushed by a swimming pool," Zeyu said.

"It wouldn’t crush the entire shelter."

"That distinction brings me very little comfort."

Shichen enlarged the western wall. He studied it long enough that the morning wind lifted one corner of the plan from beneath its clip.

"We can underpin the wall and install additional anchors into the ridge."

"That takes time," Hanchuan said.

"Eight days if I use three crews."

"You have them."

"I don’t have the property yet."

Hanchuan removed his phone from his pocket and called Assistant Lin. "Complete the hotel acquisition this morning. Shichen requires access to begin structural work immediately."

He listened for several seconds before he continued, "Pay the penalty. I want possession before noon."

Hanchuan ended the call without waiting for the seller’s response.

Zeyu looked across the hood. "You know, some people negotiate when buying a hotel."

"Negotiation takes time."

"It also saves money."

"Money isn’t one of our limited resources," Hanchuan snapped back. This was not the time to worry about saving money when in less than a month, money wouldn’t be able to buy even a bottle of water.

"That sentence explains a great deal about you."

It explained nothing to Zhiyi. All five men possessed more money than they could convert into useful supplies within twenty-five days. Preserving it had no measurable benefit.

She looked at the hotel again. "The acquisition isn’t the first problem."

Shichen followed her gaze. "What is?"

"The plans are incomplete," she replied.

"They’re the approved construction set," countered Shichen.

"They show what was intended. I need to see what was built."

For the first time that morning, Shichen smiled.

It wasn’t the polite expression he had used when they met. His attention sharpened as if she had finally said something in a language he trusted.

"So do I," he replied approvingly.

He rolled the plans, secured them beneath one arm and led them toward the nearest entrance.

The ground floor smelled of wet concrete, rust and dust. Temporary lights had been strung along the ceiling, but only every third fixture worked. Their footsteps crossed the unfinished lobby in six different rhythms.

Zhiyi counted eleven changes from the approved plan before they reached the first stairwell.

A service wall had been moved thirty centimetres to accommodate a drainage pipe. Two fire doors opened in the wrong direction. The builders had used a narrower conduit through the northern utility chase, and one support beam contained an access opening absent from the structural drawings.

Shichen stopped at each discrepancy.

He photographed it, measured it and added the change to his tablet. He grew quieter every time Zhiyi found another.

By the seventh, he no longer checked the plan before believing her.

At the underground entrance, a temporary steel gate blocked the stairwell. Jingwei tested the lock, examined the hinges and looked through the bars before opening it.

"Construction staff accessed these levels until work stopped," he said. "There are at least four other entrances."

"Six," Zhiyi corrected.

"The plans show four."

"The laundry chute connects to the second underground level, and the central lift shaft remains open from the roof."

Jingwei looked at Shichen.

"She’s right," Shichen said. "Neither was intended as an entrance."

"Anything large enough for a person to fit through is an entrance," Zhiyi countered.

Jingwei made a note on his phone. "I’ll have both secured today."

"Not permanently," Zhiyi said. "The lift shaft may be useful for moving supplies."

"Then I’ll secure it without closing it," Jingwei finalized without changing the expression on his face.

Zhiyi didn’t say anything.

Satisfied, Shichen opened the steel gate and cool air rose from the darkness below them.

It touched Zhiyi’s face, carrying the mineral smell of buried concrete and standing water. For one irrational second, the heat shelter from their first life replaced the unfinished hotel.

The corridor was narrower.

The ceiling was lower.

Hanchuan was waiting somewhere beneath her, unable to reach the food stored seven meters away.

Her hand tightened around the water bottle even as Hanchuan’s palm settled against her back.

He wasn’t pushing her forward, he wasn’t stopping her.

His hand was only there to remind her that he was whole, alive, and that they would survive this.

"The first level," he murmured softly, kissing the top of her head. "Nothing beyond it until we’ve checked the stairs."

The hotel returned as Zhiyi looked down at the concrete steps and took the first one.

Right. This time, they were entering the shelter together.

Always together.