This one is based on the book.

The old Brightwing couldn't take off properly. He knew that if he tried, his fragile, ancient wings would give out instantly. As the giant bats burst into the roost, he retreated into the shadows as far as he could—it was his only option. He didn't want to, he hated retreating, but he had to after seeing what the cannibals did to the others in his colony of banded bats.

It was terrible. The evil giants bit off heads, ripped out the beating hearts of his friends, his colony, the only ones who ever accepted him banded. Teeth flashed, jaws snapped. Everyone was bloody, broken, either injured horribly or dead. And, to make it worse than it already was, the two cannibal bats tore the bands, the symbols of Nocturna's Promise, from the forearms of the dead, sometimes going as far to snapping wing bones to get the shining pieces of metal. The Brightwing tried to block it out, close his ears and eyes, but he knew what was happening.

But where was Nocturna? Shouldn't she be saving her chosen, the ones she chose to be marked by the Humans to return to the day? She chose them! Surely she did not want them dead.

And what of Scirocco? He was their leader, specially selected by Nocturna to lead them in the Transformation. Was he already dead, killed trying to save his colony? Or was he cowering, too fearful to protect his own?

Confused and terrified, the old Brightwing's heart shuddered at the knowledge of what was happening to his fellow banded bats. They were being murdered horribly, and what was he doing? Hiding back in the shadows! They were the only ones who had cared for him after he had been banded, even his own former colony had driven him out after being banded! These bats were his only family. He couldn't leave them.

He let go of his tight grip on the rafter with his rear claws. He attempted to unfurl his wings, but as expected, they gave out. The jarring impact with the wooden-beamed floor didn't kill him immediately, though it was painful. He must have broken some of the fingers in his wings.

He never even saw the fanged jaws of the larger cannibal streaking towards him.