It needs to stay hidden. I cannot risk it being found. If I don't scatter the clues far enough, it could lead to one of them finding it. I cannot risk that. I cannot risk my family's lives. But what if they find it before I can complete my mission? If that happens...
Perhaps I shall leave a clue, a single clue, in a place that they will not think to look. The only place is...my lovely little scarlet bird. If I can plant a clue there, it will one day lead her to it. To the treasure. I hate to do this, but I have no other options.
I will teach her. I will insert the tiniest of hints into her education. When she first learns, she will not realize. However, looking upon it later, she will see. She will know.

It all depends on you now, Scarlet.