Book 51


Book 53


Book 54


Book 55


Book 56


Book 57


Book 58


Book 60


Book 61


Book 62


Book 63


Book 64

The Bobbsey twins' vacation in Colonial Williamsburg takes an exciting turn when they catch a thief, discover a howling monster, and find an old American flag hidden during the Revolution.

Book 65


Book 66

The Tag-Along Giraffe

by Laura Lee Hope

Published 1 February 1973

Book 67


Book 68

When the Bobbsey twins take an ocean voyage to view a solar eclipse, they become involved in a mystery concerning damaged equipment and missing papers.

Book 69


Book 70


Book 71

While in California appearing in a television show, the Bobbsey twins stumble upon a mystery involving a key, a missing dog, and some photographs.

Book 72