Ernest Cline: Ready Player One
Pdf, mobi, epub 
In the year 2044,
reality is an ugly place. The only time teenage Wade Watts really feels
alive is when he’s jacked into the virtual utopia known as the  OASIS.
Wade’s devoted his life to studying the puzzles hidden within this
world’s digital confines, puzzles that are based on their creator’s
obsession with the pop culture of decades past and that promise massive
power and fortune to whoever can unlock them. When Wade stumbles upon
the first clue, he finds himself beset by players willing to kill to
take this ultimate prize. The race is on, and if Wade’s going to
survive, he’ll have to win—and confront the real world he’s always been
so desperate to escape.