Replayed the game with a friend of mine a few days ago, and when I was on the bus shortly after, this popped into my head and I wrote it down quickly on my phone (sorry if it's a bit choppy as a result!). Ib is around 18-22 or so in this, I believe. Wasn't really quite sure when I was writing it.
Ib picked up the envelope that lay on their kitchen table, flipping it over, seeing that it was addressed to her.
Opening it, there was a small note, giving her instructions.
After wandering around downtown for about an hour, collecting more various clues, she finally ended up in a secluded park.
'Look behind the smallest tree', the final clue read.
She searched around for a little bit, before seeing one that looked to be the smallest, and headed over to it.
Looking up into the branches, Ib stifled a laugh, seeing a familiar person amidst the leaves.
"Garry, I followed all the notes you left, why did you have me come out here? And why the tree?"
He carefully clambered down from the branches, and stood next to her, putting his hand in the pocket of his worn blue coat.
"Do you remember what was in the tree sculpture at the museum?"
She thought for a moment.
"The ri-"
And he knelt down in front of her, pulling out and opening the box, letting it shine for her.
"Will you?"