Rōjinbi

Deep mountains, on the border between Shinano and Tōtōmi, on a rainy night.

There's a fire.

And there's an old person.

They appear together — the flame and the walker — and the record never says which is which. Is the fire following him? Is it his? Is he the fire? Nobody specifies, and nobody ever has.

Rōjinbi. "Old-person fire."

Water won't put it out

That's the first rule, and it's stated flatly.

Water cannot extinguish it.

Which is a strange thing to record about a fire, and it tells you people tried.

What does work: beating it with animal skins.

Hides. The pelts of things that were once alive.

There's a logic running through this tradition that the anomalous thing requires an anomalous solvent — that the ordinary answer is exactly the one that fails. Water is what you throw on fire. So for a fire that burns through rain on a mountain in the middle of a downpour, water is obviously not the tool.

You need something that was alive.

The sandal

Here's the counter-measure I find genuinely wonderful.

On a straight road, if you hold your footwear over your head, the fire veers off onto another path.

Not extinguished. Rerouted.

A sandal, held up like a crown, and the fire takes a different road.

And that gesture isn't unique to this entry. There's a whole small shelf of Japanese sandal-magic — the night procession you survive by putting a sandal on your head, the discarded straw sandals that come alive and run around the house. Footwear, in this tradition, has authority over things that travel.

Which makes sense in a way, if you think about who is on the road at night and what they're wearing. The sandal is the traveller's own equipment — the tool of the road — and raising it above your head asserts something about who has precedence.

Traffic control, performed on a fire, with a shoe.

And if you run

Panic and flee, and it will pursue you indefinitely.

Which is the rule this whole tradition keeps teaching in different costumes. The monk who grows the more you crane your neck. The wall that lifts if you sit down and smoke. The cold fire on your raincoat that multiplies when you brush at it. The escorting wolf that guards you until you stumble.

Composure holds the line. Flight opens the contract.

The rōjinbi is that rule, combusted: stand and raise your sandal, and it turns aside. Run, and it comes with you for as long as you keep running.

The other name

It's also called tengu no mi-akashi — "the tengu's votive lantern."

Which files it with the mountain's management.

There's a persistent idea in Japanese folklore that the tengu — the long-nosed mountain beings, half-priest and half-predator — run the high country: that the strange lights, the sudden felling sounds, the laughter, the disappearances, are a going concern with staff and equipment.

Under that alias, the rōjinbi isn't a wandering soul at all. It's a lamp, lit by the mountain's owners, and the old man is carrying it.

It's the loneliest fire in the file

Japan has a great many ghost-lights, and most of them come in numbers. Processions crossing hillsides. Twenty or thirty at once over a marsh. Fires that gather.

The rōjinbi is two.

A walker and his light, out on the worst nights, on a provincial border in the mountains, going somewhere.

And nobody has ever explained the gap between them.