They had won, but at night, sweaty, tossing, turning, Harry feared the cost had been too high.
Dumbledore. Sirius. Lupin….

The full moon shone. Harry swung himself out of bed, standing by the window, watching the moon's light.

If things had happened the way he'd wanted them to, Lupin would be transformed right now. Wolfsbane made it easier; Tonks loved him in spite of it.
Lupin would have transformed, been surrounded by family, would have watched his son grow.

Harry found himself straining to hear a howl at the moon, until tears filled his eyes because he knew he wouldn't.