This story is about a family that is goong on vacation and decide to buy a housebaot they are very excited and are happy to spend the whole summer a the houseboat when the settle in the house

Houseboat Mystery
Houseboat Mystery
Book Number: 12
Publication Date: 1967
Plot Synopsis:
Floating down a lazy river, Benny finds a blackmail scheme in progress
 That was a truly terrible summery