Comment on Kryptos Fan Letter to Jim Sanborn by mark stahley

It’s a book code. My solution is;
See a deadly ICBM track me by it to Northeast Grad. (adefhhhilnnnmptyr- or 195 degrees)
Pinch me! Berlin range! Oh man, to see” Iowa” do it ICBM!
If you want to try your own, look up Poe’s poem “The Raven” In the first stanza after “T is a visitor, I muttered” recall “T is your position” simply write the next 97 letters under the K4 letters. “Tapping at my chamber door only this and nothing more. Ah, distinctly I remember, it was the bleak of December, and each…”
Hint look at all the “U”s Byrlin!