George's computer has gone crazy. It's grown arms and legs and has walked to the library! Now it's running around - and George and Tommy are worried. Read the next part of the story.

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They look at George's computer. It is connecting to the other twenty computers in the room. The computers make lots of strange noises. Maybe they are talking to each other.

Words and strange characters flash across the screens. Coloured lights go on and off - green, blue, red, yellow. The computers go faster and faster. Suddenly one explodes, then the next, then the next… then they all explode.

George's computer is in the middle of the room. It is getting bigger and bigger. Its screen is flashing with millions of different characters and messages. It is laughing.

"Now, I have enough power!" says George's computer. "Soon I will be the only computer on Earth. I can destroy all other computers. I am the Supercomputer of the World."

Tommy looks at George. "We must stop him!" he says.