Ready Player Two

Days after winning OASIS founder James Halliday's contest, Wade Watts makes a discovery that changes everything.
Hidden within Halliday's vaults, waiting for his heir to find it, lies a technological advancement that will once again change the world and make the OASIS a thousand times more wondrous - and addictive - than even Wade dreamed possible.
With it comes a new riddle, and a new quest: a last Easter egg from Halliday, hinting at a mysterious prize.
And an unexpected, impossibly powerful, and dangerous new rival awaits, one who'll kill millions to get what he wants.