The main conflict in this novel is that Percy Jackson must find and return Zeus's stolen thunderbolt to avert a war among the gods that Zeus will start with Poseidon if his thunderbolt is not returned by the summer solstice.
What type of conflict is it, & how do you know?
Examples: Person vs. Person, Person vs. Self, Person vs. Nature, Person vs. Society, or Person vs. Technology
(Answer in a complete sentence!)