It depends on the book, but in the grand scheme, Kronos is.
Percy is a half blood and Hades stole Zeus's Master Lightning Bolt. and Hades framed Percy and put the lightning bolt in Percy's backpack, and he saved the world from having a world war 3. (against Olympus and the Underworld.)
As a lawyer, he studied law
His favorite color was red.
Yes, Percy returns the bolt to Zeus at the end of the first book "The Lightning Thief" after proving his innocence and loyalty in retrieving it from Hades.
The water gave Percy stregnth. When he got in the water, he almost killed a bunch of the SIX Ares kids, and when he BROKE Clarisse's magic spear, they realized he wasn't really a wimpy runt. That happened during Percy's first Capture the flag. Right after Percy broke the spear, Luke captured Ares' Cabin's flag.
According to Grover who was after Percy
Well Grover is Percy's 'Protector' but in high school together Percy was always protecting Grover from fights and stuff like that. So Percy is surprised when Grover believes that he is Percy's protector.
Grover revealed many things to Percy, but one of the first ones was that Grover was a satyr.
Percy's sword partner was Luke and Grover did not have one
grover
Well Grover is Percy's 'Protector' but in high school together Percy was always protecting Grover from fights and stuff like that. So Percy is surprised when Grover believes that he is Percy's protector.
Grover was freaking him out
Grover is a satyr, which means he has the legs of a goat. He is Percy's best friend since book one, and he is Percy's protecter.
what responsibility does Grover claim to have,and why does this strike percy as strange
Percy was guilty about getting Grover in trouble because Grover asked for Percy to wait for him so Grover could make sure he stayed safe and like, wasn't attacked by monsters on the way home. Grover was really worried about Percy since the attack of the Furry or the Kindly One. Then when Percy ditched Grover he went home and didn't tell his mom what had happened at school. When Percy and Mrs. (Sally) Jackson went to Montauk, they were chased out by the Minotaur, Grover came and tried to help them. Percy's mom was seemingly killed in the fight as Percy killed the Minotaur and Grover was unconsious. The Council didn't think that Grover passed his test to deliver a half-blood safely to Camp Half Blood. Percy was guilty because if he had just let Grover come with him, maybe things would've gone better.Basically, Percy just felt bad for ditching Grover.Hope this helped.
Hades
hoofs.