Letters-How Unusual

When you live in the "Prime Age of Tech" you don't ever use paper, I don't think I've ever touched paper. Anyways...yesterday I got a letter. Like someone mailed me a piece of paper in an envelope made of paper. It was so weird. And what was in it...well....
 
I woke up that day and eat breakfast, I pressed buttons and they did stuff. I had a few lessons with my Computer Tutor, ya know normal stuff. At about 14 hundred hours i heard a knock on my door, I went to see who was there, opened the door and no one was there, I looked down and saw paper. It didn't have a name on it so I took it, went back inside and locked myself in my room. I opened the letter under my blankets so, hopefully, no one would see. It read:
 
Dear _____,
My world is in trouble. My grandfather told me that if I ever needeth help to write to this address. I was never told why, or whom I was writing to. Alas all I was told was to never trust this information to any other person or creature. I know you do not whom I am. But alas I need your help. My world is ending. A war is afoot and people are kicking the bucket at every turn, quite like the plague. I needeth your help. I do not know whom else I can trust. Please help. If you do care to help me follow the instructions below:
If finding me is what you seek,
go atop the mountains highest peak.
Listen for the howl of a moonwolf
And follow till it's silence.
Once you see the tree with "Race against Rime" engraved in it
Climb til the sky is not as before.
After you complete this another clue is hidden in the tree. I am quite sorry for making this so difficult alas it is for the safety of us both.
Destroy this letter as soon as possible.
I wish you luck,
O.A.
P.S. say hello to your mother for my grandfather.