This is the second event that moves the plot forward.
Meg, Calvin, and Charles made it to the central CENTRAL Intelligence building and found a man with red eyes. The man is trying convince Charles to look into his eyes so he can find his father, but Meg sees that this is a trick.
Before the Action
But Mrs Whatsit warned you!
I have to try. For Father, Meg. please. I want--I want to know my father--
I have to find out what he really is ... you mustn't stop me this time, Meg.
Okay, lets go.
During the Event
Once Charles talked with Meg and Calvin, he went to the man with the red eyes to look into his eyes.
After Charles looked into the mans eyes, he looked the same (Except his eyes which changed into black), but he didn't act the same and Meg knew it. This would cause many problems later in the story.
Come on, Meg, eat this delicious food that has been prepared for us.