It took me 2 days. He was a strong man, stronger than me, stronger than Halvor, stronger than any woman. He died 300 yd from his own barn because he could not see his hand in front of his face. He followed the fence line until the fence ended, and then he guessed wrong. 90 ft. He guessed 90 ft wrong, and he froze to death standing up.”

He pointed toward the silo. The limestone blocks caught the morning sun, solid and pale against the green prairie.

“43 ft,” he said. “I measured it when Halvor and I dug the foundation. 43 ft from your door to your fuel. When the blizzard comes, and it will come, you will not be able to cross those 43 ft. You will run out of cobs in the cabin. You will have to choose between freezing in place and dying in the snow, and those children will die with you.”

The words hung in the air. Behind her, through the open cabin door, she could hear Anna singing a Norwegian lullaby to her rag doll. Eric was somewhere in the yard, probably chasing grasshoppers.

“Halvor kept the rope,” she said.

“Bjorn had a rope. The rope broke. Or the rope iced over and he couldn’t grip it. Or the wind was so strong he couldn’t pull himself along. I don’t know. I only know he died with a rope in his hand.”

Holstad turned back toward his horse. “Sell to Fenner, marry him if you have to. Get those children somewhere safe before December. That is my advice. It is the only advice that will keep you alive.”

He mounted, touched his hat, and rode west without looking back.

Carrie stood in the May sunshine and stared at the silo. 43 ft, 3 tons of corn cobs, 8,000 thermal units per pound. The arithmetic was simple. The distance was impossible. Halvor’s rope still hung from its post.

In the 1st week of June, Carrie walked the quarter section with a length of twine and a pocket full of wooden pegs. The river ran along the western boundary, cutting through limestone bluffs that broke the prairie wind. Cottonwoods grew in the bottomland, useless for construction and barely worth burning, but tall enough to mark the water. East of the river the ground rose in gentle swells toward the open plains. The grass already stood knee-high, rippling like water in the constant wind.

She was not counting acres. She was counting willows.

They grew everywhere along the river: sandbar willow in the wet ground near the banks, black willow farther up the slopes, prairie willow in the draws and swales where water collected after rain. She had noticed them before without really seeing them, flexible stems that bent without breaking, smooth bark that stripped easily, branches that could be woven like thread.

In Norway, her grandmother had made baskets from willow: storage baskets for vegetables, carrying baskets for market, fish traps for the fjord. The old woman’s hands had moved without thought, weaving the rods in and out, building shape from nothing. Carrie had learned the basic patterns as a child: over 2, under 2, pull tight, repeat. She had never thought of the skill as anything more than women’s work, something to pass the time between harvests.

Now she looked at the willows and saw something else. She saw walls.

The idea had come to her in pieces over the preceding weeks, assembling itself in her mind the way a basket assembled itself under her grandmother’s fingers. First, the Vikings had built with willow. Her father had told stories of the old longhouses, wattle-and-daub walls made from woven branches covered with mud and clay. The technique was older than Christianity. It had survived 1,000 Norwegian winters. Second, the distance between the cabin and the silo was not the problem. The problem was exposure. A rope let you find your way through the white blindness, but it did not protect you from the wind that stole your warmth, the snow that packed into your lungs, or the cold that froze your fingers around the hemp before you could reach the door. Third, what if the rope was not a rope? What if it was a tunnel?

She had sketched it in the dirt with a stick, rubbing out lines and redrawing them while Anna asked questions and Eric tried to catch a toad. A covered passage from cabin to silo. Woven willow walls bent into an arch overhead. Mud and clay packed over the willow to seal out the wind. A Gothic profile, peaked like a church roof so snow would slide off rather than accumulate. 40 ft long, 4 ft wide at the base, 6 ft tall at the peak. She could walk through it in any weather, in any wind, in the white blindness that killed men stronger, smarter, and more experienced than she would ever be. She could walk through her tunnel and fill her basket with corn cobs, and walk back and feed her stove while the blizzard howled overhead.

If she could build it. If the willows were strong enough. If the mud would hold. If she could finish before the first freeze locked the ground and made the work impossible.

She had 5 months.

Martha Reinhardt came to borrow salt on the 3rd Tuesday of June. She was a stout woman in her 40s, born in the German colonies along the Volga, and married to a man who had lost 2 fingers to frostbite the previous winter. Her English was better than Carrie’s, though both women slipped into their native tongues when angry or frightened. She had brought Carrie a ham when Halvor died, had stayed through the funeral, and had helped wash the body. She was the closest thing Carrie had to a friend on the prairie.

“What are you building?”

Carrie looked up from the bundle of willow rods she was sorting. She had cut them that morning from the riverbank, green stems as thick as her thumb, supple enough to bend into hoops without cracking. Her hands were sticky with sap and her back ached from stooping.

“A passage from the cabin to the silo.”

Martha stood with her empty salt jar and stared at the stakes Carrie had driven into the ground, a double row of wooden pegs spaced 2 ft apart, marking the path the tunnel would follow.

“A passage,” Martha repeated.

“Covered. Woven willow and mud, like the old longhouses, so I can reach the corn cobs when the blizzards come.”

Martha was silent for a long moment. She walked along the row of stakes, counting under her breath, 43 ft of pegs, and then turned back with an expression that mixed concern and confusion in equal parts.

“You are building a basket,” she said.

“A 40 ft basket. A tunnel. Woven willow with mud plaster. Wattle and daub.”

“The Vikings lived in Norway.” Martha’s voice was sharp. “This is Kansas. Do you know how hard the wind blows in Kansas? I have seen it strip shingles from a roof. I have seen it push over a loaded wagon. You think bent sticks and mud will stop a winter storm?”

Carrie lifted one of the willow rods and bent it into an arc, one end in each hand, until the tips nearly touched. The rod flexed without breaking. She released it and it sprang back to its original shape.

“The wind will not hit flat walls,” she said. “The tunnel will be curved. The wind goes over. And when the mud cracks in the cold, I will patch it in the fall. I will use lime wash to seal the surface. And when the snow piles up against it, the Gothic arch sheds snow. The peak is steep.”

Martha shook her head. “You have built a basket, Carrie. Maybe a chair. Have you ever built a house, a barn, a shed?”

“No.”