Sacrifice

2-shot

A life for a life
A soul torn in half
An eternal bond snapped

"Even as he started groaning in pain and choking on his own blood, even as his king's chest jolted up and down erratically and a healthy flush rose up his neck, Merlin could feel his life fading slowly, his eyes began to flutter closed."

What if Merlin cried out to magic on the shores of Avalon?
A warlock's heart for his king's
A warlock's breath for a prat
A friend's plea for his brother

Disclaimer: I don't own Merlin bbc does