Teenage detectives Frank and Joe Hardy investigate a case of counterfeiting.

To their friends’ envy, Biff and Chet plan to take a boating vacation up the coast. The joy of sending them off soon turns to anxiety as neither of them make

Read the original Nancy Drew mystery! The Secret of the Old Clock is the mystery that began it all for America's favorite teenaged slueth. The accidental rescue

Together in this one book are two of the Hardy Boys’ oldest mysteries that began the classic mystery series of the sleuthing siblings. In The Tower Treasure,

The Hardy Boys series, first published in 1927, has sold more than 70 million copies! Now with a brand-new look, this is an edition that collectors won't want t