Domains: The thawing waste, ash-and-snowmelt landscapes, the recovering wild.
Era of ascension: Age of Craggus (~42,000 years ago). Cohort: dead. Died: Lost Ages (~30,000 years ago), when his domain had already contracted to a thin band of remaining margin and the Laughing Plague killed his last cult of margin-dwellers in that band.
Worshipped by: The frontier polities of the Craggus era — settlers reclaiming the slowly-thawing edges of the Long Winter waste — and the margin-dwellers whose lives were spent at the working edge between buried ground and recovering ground. No living culture maintains his worship. (The worships edge is authored downstream on the worshipper, not here.)
Oshtravak was specifically the transitional landscape. He was not the wild — the wild had its own gods in other ages — and he was not the cultivated rebuilt world either. He was the strip of country between them: ash from the Long Winter mixed with snowmelt from the receding ice, soil that had not been soil for fifty thousand years coming back as soil, plant life arriving in patches in the order plant life arrives at, and the small populations of human margin-dwellers who lived at that edge and worked their way into it as it widened. His doctrine made the thawing itself the rite: a worshipper at the edge was completing the worship by living there.
The doctrine had a built-in expiration date. As the Age of Craggus advanced, the thaw continued; his domain literally shrank, year by year, as the recovering wild stabilized into ordinary wild and the cultivated lands extended into the recovered strip behind it. His priesthoods understood this and treated their cult as deliberately terminal — Oshtravak's worship was always going to end with the completion of his domain. The doctrine was clear that this was not death but completion; a successful cult of his ended itself by no longer having anywhere to perform.
The Plague accelerated the end. By the late Age of Craggus his margin-dwelling cult was already thin — the domain itself had shrunk to scattered bands of late-thawing high country — and the Plague found those bands at full demographic vulnerability. The last priests died in the high north, in country that had been recovering since the eruption and was, by their doctrine, almost ready to graduate out of his domain. They did not survive the graduation. Distinct from Vrokún of the previous age, whose wild was timeless; Oshtravak's wild was a historical landscape that no longer exists.
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