What is the most important part of chapter 4 in The Cay?

Phillip is now blind, and everything is black. Timothy is shocked at first, but he tells Phillip that the blindness is only temporary. The same thing happened to a man in Barbados, and he got his eyesight back. Phillip's pain is gone, but he still has a good freakout.

Explanation:

that is what happened in chapter 4

In chapter 4 of "The Cay," Phillip is blind, and everything is black. Timothy is in shock at first but then tells Phillip that blindness is only temporary. The same thing happened to a man in Barbados, and the man got his eyesight back. Phillip's pain is gone, but he still freaks out about being blind.