The Night We Met- Modern Merthur (Arthur returns)

The stars danced in the sky, glistening and twinkling in the shape of a sword. All the magic in the world seemed to celebrate the return of something, or someone. A dark-haired boy stuck his head out of the window of his house to study the peculiar constellation. The sword in the stone; Excalibur. It was a sign, a sign saying the once and future king was back. King Arthur had returned.

BBC Merlin fanfic 1,500 after the events of season 5.
TW: Suicide and self-harm. Please don't read if it makes you uncomfortable.