Aqua and Rios are bored, which is always a recipe for disaster. They decide that taking a trip to visit Nickel would be a ton of fun, so they hop on a boat and go sailing down the river. Niagara Falls separates the two kits from their destination, not that they're aware of that fact, and their fun adventure quickly turns into a desperate fight for survival.
Click on any of the links above to see more books like this one.