Title: hurricane hatched from a sigh

Fandom: Highlander/Supernatural

Disclaimer: not my characters

Warnings: spoilers for up to season 5 SN; AU

Pairings: none

Rating: PG

Wordcount: 440

Point of view: third

Prompt: Highlander/Supernatural, Castiel tries to convince one of the children of Death (Immortals) to help him in his rebellion. Methos would rather not get involved.

"Little angel," the Horseman says, ring flickering in the moonlight. "You are brave, and so incredibly foolish."

Castiel stares at him, determinably unafraid. He has already fallen, after all. Already been killed by his brother once. What more can this Horseman do?

Death smiles, chuckling. "I can do much, child. I am the oldest, and old things have more power than you could ever comprehend." He cants his head, staring into Castiel's eyes. "You are here for a favor. Speak it."

"Your children," Castiel says. "I would ask their help. The Winchesters—and I—are losing. We are too few."

Death laughs and Castiel shivers. "A few would help you, little angel. There is one who already fought a demon to save the world, or so he thought."

Castiel asks, "I have your permission?"

Death reaches out, places a cold hand on Castiel's shoulder. "You may ask. Most are young, arrogant and foolish. A few, though, would be a boon." He stares hard at Castiel for a moment. Castiel shudders. The ring flashes again, and Death says, "My eldest child. If you can convince him to your cause… I believe you might even win."

"How will I know him?" Castiel inquiries, striving to not jerk away.

Death smiles again. "Of all my children, he is the most like me. He even used my name, for a time. Created his own brotherhood of horsemen." He pauses, and worlds are born and die in the eternity before he speaks again. "You will know him, little angel."

Death releases him and Castiel—does not flee. He merely exits quickly, to begin another search.

o0o

You will know him, Death said, and Castiel shivers, looking at Death's son.

"Well, now," the man calling himself Adam Mateo says. "What can I do for you, little angel?"

"Lucifer has been released," Castiel tells him. "The end of the world has begun. I need your help."

Death's oldest child, who had been ancient during the Flood, laughs. "Pop told you to find me," he muses. "You'd have never known of me, otherwise."

Castiel waits. He has learned patience dealing with Winchesters.

"I'd really rather not get involved, you know," the man continues. "War is so tedious. It never truly changes." He looks past Castiel, to the normal street and all the normal people living on it. "But," he says, and he sounds resigned, "this is my world." He focuses on Castiel. "I was the first thing to ever live on this world, and I'll be the last thing to die on it."

A ring flashes on his finger, that wasn't there before. Death's son smiles.