When Nancy searches through the knapsack of an amnesia victim, she finds an unusual ring. Before long, she is caught up in a second case about a beautiful harpi

When Nancy searches through the knapsack of an amnesia victim, she finds an unusual ring. Before long, she is caught up in a second assignment from a beautiful

A group of professional detectives challenge Nancy to tackle a mystery that they have failed to solve: find an invaluable message hidden by a missionary centuri

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

The Canadian Northwest beckons Frank and Joe Hardy to mystery and adventure. It all starts when a French-Canadian trapper, Caribou Caron, makes a historical and