The fourth book in the Good Guys Agency series! The dynamic trio is back! When their friend Gordie is about to give up on math class (what is it with Xs and Ys, anyway?), Lucky, Rudy, and Red take another trip back in time to meet Ludwig van Beethoven. After all, if anyone can help Gordie persevere, it's the man who composed his greatest music even after losing his hearing. Can Gordie find the perseverance to push through? Find out in Play On Like Ludwig! What is the Good Guys Agency series? Boys need better role models, and in The Good Guys Agency series, friends Lucky, Rudy, and Red take matters into their own hands! Time travel adventures, historic heroes, comic book panels, laughs, jokes, and more deliver a winning combination of fun, education, and values to inspire a new generation of honorable men. Perfect for fans of Captain Underpants and Dog Man!