The Six

The Six is a science-fiction novel released on July 7, 2015, written by Mark Alpert.

"Exchanging their bodies for machines, these teens will defy expectations, brave danger, and defend civilization. They are The Six.

Adam's muscular dystrophy has stolen his mobility, his friends, and in less than a year it will take his life. Virtual reality games are Adam's only escape from his wheelchair. In his alternate world, he can defeat anyone. Running, jumping, scoring touchdowns: Adam is always the hero.

Then an artificial intelligence program hacks into Adam's game. Created by Adam's computer-genius father, Sigma has gone rogue, threatening to kill Adam―and the entire human race. Their one chance to stop Sigma is using the technology Adam's dad developed to digitally preserve the mind of his dying son.

Along with a select group of other terminally ill teens, Adam becomes one of the Six who have forfeited their failing bodies to inhabit weaponized robots. But with time running short, the Six must learn to manipulate their new mechanical forms and work together to train for epic combat...before Sigma destroys humanity."

-The Six book blurb.

Adam Armstrong Gets Hacked
While programing and playing his original virtual reality program, Adam Armstrong, the son of Thomas Armstrong, he is hacked by a program named Sigma. Sigma starts asking Adam personal questions about his life, father, and the Pioneer Project. This results in Adam panicking and his father coming into the room to check on him.

Characters
Adam Armstrong

Shannon Gibbs

Thomas Armstrong

Sigma??