Yellow Bird possessed her powers, but they were definitely limited.

And to believe beyond those limitations, to ride upon the wings of superstition and imagination, was sheer savagery.
Jolly Roger stretched himself upon his blankets again, repeating this final argument to himself.

But as the night drew closer about him, and his eyes closed, and sleep came, there was a lightness in his heart which he had not known for many days.

He dreamed, and his dream was of Nada.

He was with her again and it seemed, in this dream, that Yellow Bird was always watching them, and they could not quite get away from her.