The construction site is still busy - what will happen there today? A crane, a mixer, a dump truck, various tools, but also a protective helmet - all of this is needed on the construction site. And those workers and craftsmen of various professions! On each page of this book, children will discover a short story that they can co-create using magnets. And when they've won to their heart's content, they can tidy all the magnets back into the storage box, where they'll be ready for more great fun.