He is an Angel of Death, the Cleaner, the Killer...
He protects his new home—the Academy City, the largest and well-organized underground metro hub—from internal and external enemies, because his old home has been taken over and he has no one left there to return to.
Without fear or remorse, he destroys everyone who might in any way threaten the last stronghold of everything human left in the human race, sealed underground.
But...
“Dear readers, please note that the novels ‘Adam. Metro 2033. Novosibirsk’ and ‘Adam. The Brotherhood Enclave’ are not a series. They are independent books on the same theme with similar content, rewritten for fans of fan fiction of ‘Metro 2033’ and independent post-apocalypse, respectively. And if you’ve read one of them, you probably don’t need to take the second.”
Vyacheslav Kumin