"Every year, the town sends lanterns down the river that'll eventually arrive in the stars. The boys make a pact "No own turns for home. No one looks back." One way or another, they will find out where the lanterns go."
"Ben and his friends are determined to find out where the paper lanterns of the annual Autumn Equinox Festival go, so they follow the river as far as they can until the only followers left are Ben and Nathaniel."--Provided by publisher.