The Question and Answer section for The Lightning Thief is a great resource to ask questions, find answers, and discuss the novel.
The main conflict in the novel directly relates to the theft of Zeus' lightning bolt, and the requirement that Percy both find and return it. Along the way, numerous characters thwart his attempts to regain the lightning bolt, generally because of...
The head master sends a letter to Percy's mom informing her that Percy won’t be invited back the following year to the school.
Percy is the son of Poseidon so he has a special relationship with water. Water seems to heal Percy's physical and emotional wounds.