The Hardy Brothers Detective Stories (Digest) - this series received a Digest addition so as not to confuse it with its predecessor, the original series, which officially bears the same name. It was first published in 1979 by Simon & Schuster and existed for more than 25 years, until early 2005.

Young detectives Frank and Joe Hardy are looking for a million dollars stolen from a bank. And a new friend of the Hardy brothers invites them to take part in water slalom competitions - a descent along the rapids of the Roaring River, a small but stormy river near the Canadian border.