“I promise you. I will stand between you and anyone who comes through those doors. You finish your watch, Sarge. All twelve hours.”

We sat together as the clock crawled toward the mark. The baby slept on, deep and easy, her breathing folded into his, the drugs in her blood beaten back for now by nothing more or less than the oldest medicine there is — one frightened creature held steady against another.

And at 5:00 in the morning, as the digital numbers on the wall clicked over to the exact twelve-hour line, Sarge let out a long, shuddering breath, and I watched a weight he had carried for two decades lift, just slightly, off his shoulders.

He looked down at her, and a small, broken, wondering smile touched his mouth.

“Okay, little bird,” he whispered. “Watch is over. You made it. You’re safe now.”

He shifted his weight to stand, to carry her the few feet back to the isolette at last.