It is necessary so when conducting your answer or summary you have enough reason and evidence to support it
A. The mystery around the monkey's paw is introduced
Hints of this lie in the adjectives such as "curiously" and the mention of "magic" which tells the reader that there might be something more to monkey's paw, and that maybe we should be curious.
I need to know in what before I can answer.
B maybe i’m not sure though