Answer:
its is an informal letter
Answer:
A sample of an author's styles and tone would be the choice of diction (vocabulary), sentence structure, the point-of-view, and the way the chosen words are used. It's also important to factor the mood.
I believe he said something like "Grandalf! If you had heard only a quarter of what I have heard about him, and I have only heard very little of all there is to hear, you would be prepared for any sort of remarkable tale."