The Bobbsey Twins On A Houseboat is a children's novel by Laura Lee Hope, first published in 1915. It is part of a series of books featuring the adventures of the Bobbsey twins, Bert and Nan, and their younger siblings, Freddie and Flossie. In this book, the Bobbsey family sets out on a summer vacation on a houseboat. The children are excited to spend their days exploring the rivers and lakes of the countryside, fishing, and swimming. They also plan to attend a carnival on the shore where they will see a snake charmer and a bearded lady. But their vacation is not without its challenges. Freddie and Flossie become stranded on a small island, and Bert and Nan must work together to rescue them. The children also encounter a group of suspicious characters who seem to be up to no good. With the help of some new friends, they work to uncover a plot to rob a wealthy family's home. Throughout their adventures, the Bobbsey twins learn about the importance of teamwork, communication, and problem-solving. The book also emphasizes the value of family and the joys of spending time together.