In this sentence, the word SLOWLY is describing how he walked home.
This means that it has to be an adjective.
to evoke mood you can use many stargtegies such as pathetic fallacy and foreboding and foreshadowing
Answer:
The author's main purpose in writing the biography is to give us access to the commendable life of military Leader Colin Powell. Through his writing, he wants to show us how Powell's life presents an exemplary story of a hard-working man with a strong work ethic that made America proud.