Nicky is not an immortal, never been. He's acutally Hades, the God of the Underworld. It's his job to decide whereto a soul goes (Elysium, Tartarus, Mourning fields etc). He has people in the Underworld who do the everyday business so he can stay away for some time.

But then something happens he never expected. A warrior, killed in a war in Jerusalm, appears in his realms and he falls for him immediately. He decides to give him immortality and accompnies him since then. He even had changed his memories so he thought they had killed each other many times and were both immortals.

Nicky had granted immortality before, to people he considered worth of it (Andromache, a Scythian warror, Sebastien, a french warrior...) but they don't remember him being the God of the Underworld, too.

And then a mortal with the name Copley finds out about the Immortals and why they are immortal (the true reason) and he wants Nicky to give immortality to other people, too (and maybe get back his wife) and so he tells Merrick...


+ every now and then Nicky leaves when some weird people appear and ask him for his presence
+ he can't restore the immortality once it fades
+ he knows where Quynh is but other gods had decided her fate and he's not allowed to interfere
+ he gives Nile immortality because he sensed that Booker is lonely and needs company