A valuable waistcoat is up for auction. The man selling it says that it used to belong to George Washington. If so, it could be worth a lot of money. But how could they tell if the man was telling the truth? After all, the man selling it was Peter Markham’s uncle. And everyone knew that Peter Markham was one of the most dishonest kids in the whole school. See if you can solve this 15-minute mystery before the Brodericks do.Ages 8 and up.LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Many books also work well as hi-lo readers. Open the world of reading to a child by having them read for 15 minutes a day.