As they watch the river flow past their house, Josh and Aaron make up stories about where the river begins--stories that prompt them to set out one day and locate the river's origin. Reprint. PW. AB. NYT.As they watch the river flow past their house, Josh and Aaron make up stories about where the river begins--stories that prompt them to set out one day and locate the river's origin. Reprint. PW. AB. NYT.