Fifty 'bugs' have invaded the body. Can the defenders stop them? As the invaders move from the skin into the mouth, down the throat and into other parts of the body, some of them begin to mutate and change. Now the defenders must find creative ways to eliminate the pesky bugs. In this wonderfully illustrated book, readers are guided through an amazing puzzle adventure through the human body as the brave defenders fight off the bugs. For the first time, this edition of this hugely popular book comes complete with an extra six pages of solutions. Enjoy.
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