8-9 years

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 ...

A Netflix Original series! The fourth book in the New York Times, USA Today, and Wall Street Journal bestselling series, with over 7 million copies...

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 ...