Help! A mad scientist has unleashed a huge mob of deadly robots on the world. Only by joining the characters and solving every one of the science-based puzzles in this book can the reader discover the password, stop the destruction and save humanity! At the same time you learn about astronomy, nature, secret codes, medicine, chemistry and physics - all these subjects are woven into thrilling storylines and challenging games. Each puzzle focuses on a different topic: crosswords, riddles, word games, word searches and cyphers.

 

There are 128 pages in this book. This book was published 2004 by Sterling Juvenile .

HELENE HOVANEC is a long-time puzzle writer whose previous books include Tough Trivia for Kids and several My First Puzzles books plus many more.