Hardy Boys 01 - The Tower Treasure

The Tower Treasure is the first volume in the original The Hardy Boys Mystery Stories 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.

Grownups will remember Frank and Joe Hardy and their ability to solve even the most baffling of mysteries. The first book was published in 1927, and over the years the series has sold over 50 million copies.