#ghostkeith

Sounds like this one:

Not even death do us part - Destinee Zara (LadyDestineeZara)

31k. (Mature).

Hi anon, I’m not sure if these all fall under the realm of “spirit,” but here’s a few: 

The Guardian and the Dreamer - TruebornAlpha @itdans & @runicscribbles

16k. (General Audiences) Background Ships: Hunk/Lance

Seven year old Shiro finds himself in the land of dreams and meets a fierce little guardian spirit named Keith, who is determined to protect his heart.

The Bridge - TruebornAlpha @itdans & @runicscribbles

2k. (General Audiences) 

Shiro has always chased the dancing lights that played in the forest. One day he caught one, and from then on, Keith wouldn't let him go.

A Sheith fairytale.

Please Remember Me, As Vivid As I Was - bouquetofwhoopsiedaises 

5k. (Mature) Contains: Major Character Death,  descriptions of violence, past sexual abuse

“Am I pretty?” The guy asked again.

Maybe the guy was just flirting with him? Shiro’s gaze caught on his eyes, so captivating and expressive… He nodded. “Yeah. You are.” He answered honestly.

Something about the smile in his eyes changed, becoming more sinister. The man reached up and unhooked one of the loops of his surgical mask from around his ear. “How about now?” He asked, pulling the mask away.

Sudden cold doused Shiro like ice-water flooding his veins. The man’s mouth was slit to either side of his lips, scars stretching up his cheeks and practically to his ears. It was a shock, yes, but what really made his heart stutter with fear was remembering his earlier question; am I pretty? His grandparents had told him stories as a child about yōkai and yūrei -- Japanese demons and ghosts -- and though he hadn’t thought about those stories in a long time, they suddenly came back to him.

There was a kuchisake-onna standing in front of him, and had just asked him the dreaded question. Shiro knew the stories -- saying no would get him killed, but saying yes would earn him a matching scar. There was no good answer.

go alone, and never speak of this again - arahir @arahir​

14k. (Mature) Contains: Presumed Dead

The ghost of what Shiro's lost haunts him. Keith tries to find a way home.

“Shiro?” someone asks, and later he won’t remember who, but he’ll remember his own stillness, like maybe if he didn’t breathe or speak or move, time would stop moving against him.

He imagines it: the cruiser’s scattered pieces pulling in, piecing itself back together, the net of purple light coalescing, and the Galra fighter there, intact and safe. Keith—

“Shiro?” someone asks again.

Voltron falls apart.

Alive - olddarkmachine @theolddarkmachine​

10k. (Teen And Up Audiences) Contains: Major Character Death

Death caught Keith quickly. So quickly, in fact, that he hadn’t even realized what had happened to him until he’d woken to the sound of police sirens and the sight of his body being carted away in a black body bag. There had to be some sick cosmic joke in there somewhere about how his life had been ended nearly exactly when he’d finally decided to start living. Even more sickly comical about the whole ordeal was that he was now stuck forever at the age of 23 in a hand cut crop top that read:

Flower Sniffin Kitty Pettin Baby Kissin Corporate Rock Whores

He was certain there was some sort of symbolism to be found in the Nirvana shirt that life, death and every other philosophical concept in between just could not resist. Maybe if he wasn’t dead, he would have even found the humor. Be that as it may, he found himself on the business end of a panic attack. At least, as much of a panic attack as he could have when he didn’t even need to breathe anymore. 

I think you mean this one:

go alone, and never speak of this again - arahir @arahir

14k. (Mature)

The ghost of what Shiro’s lost haunts him. Keith tries to find a way home.

“Shiro?” someone asks, and later he won’t remember who, but he’ll remember his own stillness, like maybe if he didn’t breathe or speak or move, time would stop moving against him.

He imagines it: the cruiser’s scattered pieces pulling in, piecing itself back together, the net of purple light coalescing, and the Galra fighter there, intact and safe. Keith—

“Shiro?” someone asks again.

Voltron falls apart.