The Quillan Games

The Quillan Games is the seventh book in D.J. Machale's Pendragon book series. The book takes place after The Rivers of Zadaa and was released on May 16, 2006 in Canada and the US. It was released on November 16, 2006 in the United Kingdom, Australia, New Zealand and in other countries.
Territory.
The story takes place on a territory called Quillan, in the city of Rune, whose population live dreary lives under the rule of the megacorporation "BLOK". Many people gamble on the eponymous games in hope of a better life; but may lose their lives, their families, or their professions if the bet fails. The games' celebrity players are called 'challengers', and often kill each other during the competition.
Plot summary.
Like the other Pendragon books, "The Quillan Games" follows protagonist Bobby Pendragon's adventures on Quillan, while showing his friends Mark Dimond and Courtney Chetwynde on their home territory of Second Earth.
Pendragon.
Upon arrival on Quillan, Bobby witnesses a fellow Traveler die in the games; but is soon captured by the android 'dados' of Quillan's police force, and recruited as a 'challenger' by the siblings LaBerge and Veego. He is also befriended by another Traveler, Nevva Winter, who explains the social situation. Subsequently, antagonist Saint Dane offers a 'secret' of the Travelers to Bobby, in exchange for Bobby's participation in the Grand X, an upcoming series of games. Bobby initially refuses; but is persuaded to join the Grand X by a secret society of 'revivers' bent on overthrowing Blok. Before this competition, Bobby learns that LaBerge and Veego originated the territory of Veelox, but were taken to Quillan by Saint Dane, and later shown Eelong, Cloral, and Zadaa from which they derive the games' structure. Ultimately, Bobby wins the game and the support of the people, who revolt against Blok; but Nevva, secretly in league with Saint Dane, reveals the revivers' archive 'Mr. Pop' to the dados, who suppress the rebellion. In leaving Quillan, Bobby encounters Nevva's mother, Elli Winter, who assumes the position of Traveler.
Mark and Courtney.
Courtney recovers from near-fatal injuries inflicted by Saint Dane, while Mark studies science with Andy Mitchell, a former school bully, with whom he invents "Forge", a mechanized polymer capable of assuming geometric shapes on command. "En route" to witness the display thereof in Florida, Mark's parents are killed by the collapse of their aircraft, and Mark flees to another territory. Courtney, investigating this, discovers Saint Dane, who identifies Andy Mitchell as an alter-ego of his own, and returns her to Second Earth. There,Courtney discovers a lifelike robotic cat, and an unusually-advanced computer. When Bobby returns to Second Earth, he and Courtney discover these technologies trademarked 'Dimond Alpha Digital Organization'. Suspecting this name to derive from Mark's own, they also realize that the initials spell the word DADO, the name of the robot police on Quillan. Hoping to discover the precise changes made in Earth's history, they embark for Third Earth, concluding the book.