Crash-a-rumble Smash-a-grumble Whats at work? Heres a clue: It will clear the ground for you. Bulldozer! Coming through! This is the follow-up to Roadworks that will delight tiny truck enthusiasts. Its an engaging, interactive text that asks readers to guess what kind of vehicle is at work. Visual clues alongside the text help ensure that our readers are challenged but can still be successful with their guesses. In the end, the vehicles work together to build a surprise.