Which element of an effective plot line move the story foward and keep the reader engaged

As per my view:

The author should know how to put there imagination/ideas in words. Conveying there ideas and making the reader engaed is very hard. Not only knowing how to write is important but also the storyline should be interesting and creative.

THANK YOU.

idkexplanation:

make sure you add the 455 plus 468 you can use a calculator to find the answer its 455 plus 458 of textbook

i cant see the page but i am assuming as a innocent child who got tricked by an children eating old lady