He's Loki's older, nastier, vastly more powerful future self. His machinations have cost Loki everything but who is King Loki? What dread Asgard is he the Agent of? And what evil scheme has he been brewing all this time? Loki began his third life by annihilating the soul of his second - his better, purer self. Now he pays the price. What lie - or truth - will save him now? As the Ten Realms face their last hours, ancient enemies march on Asgardia...