On Christmas morning Kitty Doherty gives birth to her baby - who is immediately taken away for adoption in America. But Kitty's life is hanging by a thread, her only hope a dangerous journey through snow to Ballymara and her Irish family. Meanwhile, in Chicago, Sean and Alice try to set up a new life, far away from the families they have deserted in Liverpool.
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...