Matt has a new interest, he's become involved in a mystery sim, playing the legman for a reclusive detective genius, in competition with a large number of other sleuths. But then reality begins to intrude on the virtual world in a big way.

In 2025 the Internet practically runs the world and its virtual reality network has to be policed by Net Force to prevent terrorists from sabotaging it. They are helped by the Net Force Explorers - an elite group of teenage computer whizz kids who have made it through a tough training programme.

The Internet has become vital in protecting the world from terrorism and sabotage. The FBI's Netforce Explorers is a group of computer freaks who help out when danger strikes. They discover a conspiracy within the virtual world of Sarxos - top players are finding themselves playing for their lives.

To get some space from his parents, Rick has been hanging out in Deathworld - a punk virtual reality site. His friend Charlie is worried, some of the kids at Deathworld have been committing suicide. Charlie asks the Explorers to help him see if there is more to Deathworld than meets the eye.

Maj Green's obsession with virtual reality flight simulators looks like it could pay off when her latest Striper programme looks good enough to sell. When she puts the game through a final test-run however, she finds a dragon. Maj soon finds herself playing a far deadlier game.

Leif, Matt and several of their friends win the right to compete in a virtual rocket design and space race contest. The grand prize is a trip to Hollywood to compete in the final round of the race and the chance to appear on the holodrama.

When Net Force Explorer Madeline "Maj" Green crashes while piloting an XB-70 Valkyrie supersonic bomber, it isn't a matter of life or death - the plane is only a virtual simulation and the sabotage is only a prank. But the prankster has other more deadly ideas.

In the year 2025, the internet practically runs the world and its virtual reality webwork has to be policed by Net Force to prevent computer-terrorists from sabotaging it. But sometimes they need help - enter the Net Force Explorers whizz-kids on the Net.

Andy Moore's father, a decorated Marine Captain, died fighting in the South African War in 2014. A decade later, one of the kids at Andy's school claims that Andy's father wasn't a hero at all. But how did he get this highly sensitive information