Most people only know one London; but what if there were several? Kell is one of the last Travelers—magicians with a rare ability to travel between parallel Londons. There's Grey London, dirty and crowded and without magic, home to the mad king George III. There's Red London, where life and magic are revered. Then, White London, ruled by whoever has murdered their way to the throne. But once upon a time, there was Black London...
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, 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...