Hansel and Gretel's Crumbs

"They did not awake until it was dark night, and Hansel comforted his little sister and said: 'Just wait, Gretel, until the moon rises, and then we shall see the crumbs of bread which I have strewn about, they will show us our way home again.' When the moon came they set out, but they found no crumbs, for the many thousands of birds which fly about in the woods and fields had picked them all up. "

-From Hansel and Gretel by the Brothers Grimm