She'll write about you.

You're Niagara before the first white traveller--and you know, or rather you can't know, what Niagara became AFTER that gentleman.

Addie will have discovered Niagara.

She'll understand you in perfection; she'll feel you down to the ground; not a delicate shade of you will she lose or let any one else lose.

You'll be too weird for words, but the words will nevertheless come.