The Bobbsey twins the coral turtle mystery door Hope, Laura Lee

The Bobbsey twins in a TV mystery show door Hope, Laura Lee

The Bobbsey twins the Smoky Mountain mystery door Hope, Laura Lee

The Bobbsey twins the freedom bell mystery door Hope, Laura Lee

The Bobbsey twins on the sun-moon cruise door Hope,Laura Lee

The Bobbsey twins and the flying clown door Hope,Laura Lee

The Bobbsey twins and the cedar camp mystery door Hope,Laura Lee

The Bobbsey twins and their camel adventure door Hope,Laura Lee

The Bobbsey twins' visit to the great West door Hope,Laura Lee

The Bobbsey twins and the greek hat mystery. door Hope,Laura Lee