Answer:
we don't have access to the book it isn't available online
sorry cant help
He plays some kind of magical tune but seems to remain invisible.
An adjective tells which one, what kind, how many, or whose.
two- adjective (how many? two)
large- adjective (what kind? Large)
oaks- noun (Who or what is the sentence about? Oaks)
covered- verb (What did the subject do? Covered)
Your- adjective ( whose evergreens? Yours)
evergreens- noun (covered what? Evergreens)
There are three adjectives in that sentence.