Question

What are three new things that Percy learns about Annabeth's background

Answer 1

Daughter of Athena
Her mother hates his father
And that she’s been at camp half blood since she was seven.

Answer 2

I don't know which book/part you mean, but hears what I can say generally. He learns that she came to camp with Luke and Thalia and that her relationship with her dad is kind of rocky.

Step-by-step explanation:

Hope this helped at least a little :)