Core. It sounds the same, but it is a completely different word.
Meaning all eyes on her everybody was shocked
The pronoun case used in (us) is objective
Polonius is using his daughter to spy her conversation with Hamlet. He teaches how to act naturally, how to walk and pretend that she is reading.
In that last phrase, he is saying that we humans often act in deceitful ways, for which we are to blame.
He admits that he is making a mistake, in teaching that kind of behaviour to his own daughter.
Answer:
Posiedon claims Percy as his child or Percy heals using water during the capture the flag fight?