Alt text:

The picture shows lean, shadowy, vageuly wolf-like animals running. The caption is "the things i would imagine running alongside the car when i was a kid". Other users comment:

"This is gorgeous and I need a pack of them so we could run through the woods together hunting."

"The Runalongs are rare in worlds without fast transportation. It seems they are brought into being when someone, bored by a journey, looks out to watch the countryside go by. They daydream of a creature that follows their path (guarding? Or hunting?) and suddenly, without fanfare, it appears.

"Runalongs have little in the way of ecology, but they are known to eat other dreams. Sometimes if the one who called them is particularly lonely or afraid they will get closer and even speak in humming voices without opening their mouths. But the second you stop moving, the creatures turn and vanish behind themselves, disappearing to wherever fantasies come from.

"A Runalong can also have other forms; a humanoid figure (without distinct features) is common, and these may also ride things that are supposed to be horses. If only we were better at imagining, then they might not look so terrifying."

"WAIT. OTHER PEOPLE DID THIS???????!!!"

"Mine were large cat-like creatures"

"I forget what mine were but I imagined this too! I like the name Runalongs."

"Please, I'm nearly 30 and I still have Runalongs join me on long, boring car journeys. They must be able to sense people who are in need of their presence, for company, for entertainment, or are just so used to them being there."

"When you put your hand palm down out the window and it jumps and sways in the speed, the pressure you feel, not quite solid but not quite air is the ghostly backs of the runalongs arching up for a pat."