Publisching-firm:Longman
John Carstairs: John is a secret agent and he have worked overseas for six years. That's why he's very happy to be in Londen again. He wants to take a holiday in Devon. He don't want to go overseas again.

D.O.:The Director of Operations is the boss of John Carstairs.

Professor Mastermind:His real name is Tom smith. He has build the computer DOT. But now is he a magician.

Rudolph P.Hardbaker: He has build the computer Dot with Tom Smith. But now he wants to be the boss of the world. He wants to that with DOT.

DOT:Data Overseas Transmission. This computer works by itself. It doesn't need a special programmes. The computer sends information to other computers all over the world. DOT also wants to be the boss of the world.

Plot
The story begins when professor Mastermind is killed on stage. The police find a strange number in his hand. They can't find the murderer. When John by D.O comes, gives D.O. John the strange number. He must learn that.
D.O sends John to the island where DOT is standing because computers are stopping all over the world. D.O things that Dot has something to do with it. John goes the island by submarine. When he is on island he get captived. Rudolph wants to kill him, but DOT saves him.
DOT wants that John is his agent. John does as if he obey DOT. Than John sees a keyboard. He types the stranger number and DOT is "dead".
When John back is in Londen, he read a newspaper. The paper says that compu-ters are working again.
John goes to D.O and D.O. gives him a new assignment. The assignment tolls:go to Devon and take a long holiday.
Own Opinion
This book was the most exciting Englisch book I have ever read. I finished the book in one time