Twelve-year-old Dion loves his summers in Birch Bay, a quirky seaside village where he spends all of his time with his best friend Lea. They play video games together, hang out at the swimming hole in the woods and explore on their bikes.
This year is different, though. First, Arthur learns it will be Lea's last summer in Birch Bay. Then their freedom is threatened by the Immortals, the swim team who torments everyone at the local middle school.
When the Immortals commandeer the treehouse at the swimming hole, Lea and Arthur decide to take a stand. Using their video-game network, they gather a small army of kids who?ve had enough of the Immortals.
Armed with paintball guns and shields made of garbage can lids, the Spartan army takes back the treehouse. But can they hold it through the summer?
A humorous retelling of the Greek battle of Thermopylae, The Three Spartans is a story of friendship and belonging, and of standing up for what's right? even when the odds are against you.