What evil plan does chilingworth have? What does he need Hester to do for him to carry out this plan?

Roger Chilingworth's evil plan is revenge and he needs Hester to not reveal his identity for him to carry out his plan successfully.

Explanation:

The Scarlet Letter, a historical romance fiction is a story of a woman, Hester who has a child with another man while her husband (Roger Chilinworth) was presumed to be lost at sea.

She is shamed and ridiculed publicly for adultery. Roger Chilingworth returns and plans to carry out his revenge on Hester's lover (Dimmesdale) by torturing and tormenting him. And he needs Hester to keep his identity a secret so as to achieve his revenge plan.

the effect is, the moon appears to change shape overtime

explanation:

1.the hosts on two opposing mountains stood,  

2.thick as the foliage of the waving wood;  

3.between them an extensive valley lay,  

4.o'er which the gleaming armour pour'd the day,  

5.when from the camp of the philistine foes,

6. dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,