The Tower Treasure is the first volume in the original Hardy Boys series published by Grosset & Dunlap. The book ranks 55th on Publishers Weekly's All-Time Bestselling Children's Book List for the United States, with 2,209,774 copies sold as of 2001. This book is one of the "Original 10", generally considered by historians and critics of children's literature to be the best examples of all the Hardy Boys, and Stratemeyer Syndicate, writing.

The Hardy Boys, brothers Frank and Joe Hardy, are fictional characters who appear in several mystery series for children and teens. The series revolves around teenagers who are amateur sleuths, solving cases that stumped their adult counterparts. The characters were created by American writer Edward Stratemeyer, the founder of book packaging firm Stratemeyer Syndicate. The books were written by several ghostwriters, most notably Leslie McFarlane, under the collective pseudonym Franklin W. Dixon.