The Seam

The pressure loss was small enough that the ship's alarms ignored it. Oren noticed because he had spent six months listening to the ventilation, and something in its steady low note had changed.

The instruments put the leak at the port maintenance bay. He and Sal checked every panel, seal and service joint. They found no gap. The air kept going. Their meter showed it crossing a welded seam that neither of them could see through.

Sal painted the seam with detection fluid. A thin line of bubbles formed along it, neat as stitching. She pressed her palm against the metal. The bubbles rose through the space between her fingers.

'We'll cut out the section,' she said.

Oren isolated the bay and brought the portable welder. The new bead cooled silver and smooth. Air passed through it. He laid a second bead across the first. The pressure gauge fell faster.

A control panel beside the hatch printed a routine maintenance message: SEAL VERIFIED. Oren checked the reading again. The instruments agreed the seam was closed. The pressure gauge disagreed with them both.

Sal took off her glove. There was a narrow red mark across her palm where she had pressed the hull. It looked shallow. She rubbed it with her thumb and the skin on either side moved, but the mark did not. When she bent her fingers, it stayed perfectly straight.

Oren told her to put the glove back on. She tried, then stopped. Her fingers would no longer bend.

They called the medical deck. The medic told them to leave the bay and meet her at the inner hatch. Oren spun the wheel. The locking bolts slid free, but the hatch would not budge. The pressure inside the bay was still safe. Whatever was passing through the hull would not pass through the door.

Sal leaned against the wall, holding her marked hand away from her body. The red line had reached her wrist. She said it didn't hurt. Then she said she could feel a draft through it.

Oren held a strip of paper near her skin. The end fluttered. He did not tell her. She could see his face.

The medic was on the other side of the hatch, shouting through the intercom. She asked whether they could seal the red line. Sal laughed once. She said she'd prefer they seal the hull.

Oren looked at the bay's inventory: emergency membrane, two pressure suits, a roll of structural tape. Every item had been designed to close a break. The metal seam had not broken. Sal's skin had not broken. The air was leaving through places that were whole.

He switched off the pressure monitor so its steady green display would stop lying to him. Then he cracked open the valve to the empty pressure buffer beside the bay. Air began feeding into the buffer. The welded seam stopped drawing bubbles.

Sal cried out. Oren slammed the valve shut. Her palm was no longer red. It was pale and unmarked, except for a thin line of condensation forming across it. She could bend her fingers again.

The medic forced the inner hatch from her side. Oren pulled Sal through. Only when they reached the corridor did he notice that the air was following her. A ribbon of cold mist streamed from her sleeve into the ventilation grille overhead.

Sal gripped her wrist. 'It moved,' she said.

Behind them, the bay pressure rose to normal. Ahead, the next corridor's gauge began to fall. The medic reached for the door to the inhabited ring. Sal planted her feet. Oren saw what she had seen in the numbers: the air would follow her through every room.

She went back into the bay before either of them could stop her. Oren closed the hatch and turned the wheel until the locking bolts clicked into place. On the other side, Sal raised her unmarked hand. He pressed his palm to the glass opposite it.

The corridor gauge steadied. It rose. The medic began calling for a pressure suit and a way to bring Sal out safely. Oren listened. He wanted there to be one. Through the glass he could see Sal standing in the empty bay, breathing slowly, keeping her hand where he could see it.

By the time the suit arrived, a fine white line had formed across the viewing pane, exactly between their palms. The glass was whole. Oren took his hand away. The line stayed.