Two best friends make a wondrous discovery that risks their bond and their lives. Grand adventure stories often begin where you least expect. Iris knows this because she’s read them all. However, as a thirteen-year-old stuck in the tiny country town of Bugden, real adventure seems a distant dream. And for the less ambitious Sam, Iris’ best friend, that’s a relief. But when the two stumble upon a mysteriously dry river on the outskirts of town, they’re led to a greater discovery than Iris has ever read about: a hidden city, lost in time and overflowing with secrets. As they explore this once flooded relic, Iris and Sam unearth a forgotten tale of friendship and disaster that seems curiously familiar. When the past and present finally collide, they must each take a leap of faith to reconnect before they’re swept away.