said that earth, if treated properly, wanted to stay put.

Standing on the Nebraska prairie with the wind tugging at her dress, Anna realized she did not need a tall house.

She needed a small one that used the land instead of fighting it.

She began to think like a creature that survived by burrowing.

That night, after Fritz and Greta were asleep, she scratched a plan into the dirt with a stick.

Ten feet by thirteen.

The floor dug down into the earth to reduce how much wall had to be built above grade.

Thick sod walls, not thin.

A roof of willow poles, prairie hay, mud, and whatever fabric or scrap she could salvage from the wagon.

One small south-facing window to catch warmth from the low winter sun.

A door made from boards taken off the wagon side.

It would not be pretty.

It would not even be comfortable by most standards.

But it might hold heat, and that was the difference between a home and a grave.

For the next several weeks, Anna rose before daylight and worked until she could no longer distinguish her own hands from the dirt caked over them.

She marked the rectangle first, then dug the floor down two feet.

Every shovelful had to be moved by her own back.

Every wall block had to be cut, levered loose, dragged, lifted, and set.

She learned quickly to alternate the sod so the roots laced together.

She pressed wet earth into the seams.

She left space for the window.

She cursed once when a corner collapsed, then rebuilt it with a wider base.

The labor was brutal and repetitive, but repetition had one great mercy: it left less room for fear.

The children became part of the work because there was no other choice.

Fritz hauled willow branches from a creek bed a half mile away, dragging them in bunches, thin shoulders bent with effort, proud every time he managed a load larger than the last.

Greta gathered dry grass and picked stones from the floor excavation, talking to herself the whole time in the solemn, musical voice very small children use when they are trying to prove they are useful.

Anna hated asking so much of them, yet she also knew that work was keeping them from dwelling on hunger and uncertainty.

At night, when they lay close under the wagon, Fritz would ask whether the house would be ready before snow.

Anna always answered yes.

She answered as if certainty could be built the same way walls were built, one layer at a time.

When she went into town, she spent with painful care.

A single pane of glass cost more than seemed reasonable, but she bought it anyway because light mattered and because a sealed opening was better than cloth.

She purchased twine, two handfuls of nails, and a bit of lamp oil.

The total left her with almost nothing.

Silas Murdoch, the storekeeper, watched her choices with open skepticism.

He was a broad man with neatly trimmed whiskers and the habit of appraising people the way another merchant might appraise sacks of flour.

He offered her twenty dollars for the claim and called it generosity.

Anna knew what he was really buying.

Not land, exactly.

Defeat.

He expected