The door banged open, bringing with it a rush of cold night air. Dried leaves scudded inside, dancing across the floor, plastering themselves like tiny black hands to the stones of the fireplace. The flames within shivered and thinned. The door slammed shut.

Eduardo stood there, looking like a scruffy giant in the low-ceilinged room. He was a typical Basque—with broad shoulders and a face that seemed to have been carved in stone with a dull blade. The coat he wore was thin for the weather and patched in more places than it was whole.

He handed Isabelle a pair of Basque shoes, called espadrilles, with rope soles that were supposedly good in the rough terrain.

“How is the weather for this journey, Eduardo?” Madame Babineau asked.

“Cold is coming. We must not tarry.” He swung a ragged rucksack from his shoulder and dropped it on the ground. To the men, he said, “These are espadrilles. They will help you. Find a pair that fits.” Isabelle stood beside him, translating for the men.

The men came forward obediently and squatted around the rucksack, pulling out shoes, passing them around.

“None fit me,” MacLeish said.

“Do what you can,” Madame Babineau said. “Sadly, we aren’t a shoe shop.”

When the men had exchanged their flight boots for walking shoes, Eduardo had them stand in a line. He studied each man in turn, checking his clothing and his small pack. “Take everything out of your pockets and leave it here. The Spanish will arrest you for anything, and you do not want to escape the Germans only to find yourself in a Spanish prison.” He handed them each a goatskin bota bag full of wine and a walking stick that he’d made from knobby, mossy branches. When he was finished, he slapped them on the back hard enough to send most of them stumbling forward.

“Silence,” Eduardo said. “Always.”

They left the cottage and filed onto the uneven terrain of the goat pasture outside. The sky was lit by a weak blue moon. “Night is our protection,” Eduardo said. “Night and speed and quiet.” He turned, stopped them with a raised hand. “Juliette will be at the back of the line. I will be at the front. When I walk, you walk. You walk in single file. There is no talking. None. You will be cold—freezing cold on this night—and hungry and soon you will be tired. Keep walking.”

Eduardo turned his back on the men and began walking up the hill.

Isabelle felt the cold instantly; it bit into her exposed cheeks and slipped through the seams of her woolen coat. She used her gloved hand to hold the pieces of her collar together and began the long trek up the grassy hillside.

Sometime around three in the morning, the walk became a hike. The terrain steepened, the moon slid behind invisible clouds and blinked out, leaving them in near-total darkness. Isabelle heard the men’s breathing become labored in front of her. She knew they were cold; most of them did not have adequate clothing for this freezing air, and few of them had shoes that fit correctly. Twigs snapped beneath their feet, rocks clattered away from them, made a sound like rain on a tin roof as they fell down the steep mountainside. The first pangs of hunger twisted her empty stomach.

It started to rain. A gnashing wind swept up from the valley below, slamming into the party walking single file. It turned the rain into freezing shards that attacked their exposed skin. Isabelle began to shiver uncontrollably, her breath came out in great, heaving gasps, and still she climbed. Up, up, up, past the tree line.

Ahead, someone made a yelping sound and fell hard. Isabelle couldn’t see who it was; the night had closed around them. The man in front of her stopped; she ran into his back and he stumbled sideways, fell into a boulder and cursed.

“Don’t stop, men,” Isabelle said, trying to keep the spirit in her voice.

They climbed until Isabelle gasped with every step, but Eduardo allowed them no respite. He stopped only long enough to make sure they were still behind him and then he was off again, clambering up the rocky hillside like a goat.

Isabelle’s legs were on fire, aching painfully, and even with her espadrilles, blisters formed. Every step became an agony and a test of will.

Hours and hours and hours passed. Isabelle grew so breathless she couldn’t have formed the words needed to beg for a drink of water, but she knew that Eduardo wouldn’t have listened to her anyway. She heard MacLeish in front of her, gasping, cursing every time he slipped, crying out in pain at the blisters she knew were turning his feet into open sores.

She couldn’t make out the path at all anymore. She just trudged upward, her eyelids struggling to stay open.

Angling forward against the wind, she pulled her scarf up over her nose and mouth and kept going. Her breath, coming in pants, warmed her scarf. The fabric turned moist and then froze into solid, icy folds.

“Here.” Eduardo’s booming voice came at her from the darkness. They were so high up the mountain that there were sure to be no German or Spanish patrols. The risk to their lives up here came from the elements.

Isabelle collapsed in a heap, landing hard enough on a piece of rock that she cried out, but she was too tired to care.

MacLeish dropped down beside her, gasping, “Christ Almighty,” and pitching forward. She grabbed his arm, steadied him as he started to slide downward.

She heard a cacophony of voices come after it—“thank God … bloody well time”—and then she heard bodies hit the ground. They fell downward in a group, as if their legs could hold them no more.

“Not here,” Eduardo said. “The goatherder’s shack. Over there.”

Isabelle staggered to her feet. In the back of the line, she waited, shivering, her arms crossed around her body as if she could hold heat within, but there was no heat. She felt like a shard of ice, brittle and frozen. Her mind fought the stupor that wanted to take over. She had to keep shaking her head to keep her thoughts clear.

She heard a footstep and knew Eduardo was standing beside her in the darkness, their faces pelted by icy rain.

“Are you all right?” he asked.

“I’m frozen solid. And I’m afraid to look at my feet.”

“Blisters?”

“The size of dinner plates, I’m pretty sure. I can’t tell if the rain is making my shoes wet or if blood is bubbling through the material.”

She felt tears sting her eyes and freeze instantly, binding her lashes together.

Eduardo took her hand and led her to the goatherder’s shed, where he started a fire. The ice in her hair turned to water and dripped to the floor, puddling at her feet. She watched the men collapse where they stood, thumping back against the rough wooden walls as they pulled their rucksacks into their laps and began searching through them for food. MacLeish waved her over.

Isabelle picked her way through the men and collapsed beside MacLeish. In silence, listening to men chewing and belching and sighing around her, she ate the cheese and apples she’d brought with her.

She had no idea when she fell asleep. One minute she was awake, eating what passed for supper on the mountain, and the next thing she knew, Eduardo was waking them again. Gray light pressed against the dirty window of the shack. They’d slept through the day and been wakened in the late afternoon.

Eduardo started a fire, made a pot of ersatz coffee, and handed it out to them. Breakfast was stale bread and hard cheese—good, but not nearly enough to stave off the hunger that was still sharp from yesterday.

Eduardo took off at a brisk walk, climbing the slick, frost-covered shale of the treacherous trail like a billy goat.

Isabelle was the last one out of the shack. She looked up the trail. Gray clouds obscured the peaks and snowflakes hushed the world until there was no earthly sound except their breathing. Men vanished in front of her, becoming small black dots in the whiteness. She plunged into the cold, climbing steadily, following the man in front of her. He was all she could see in the falling snow.