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Hanasian
Annalist, Physician, & Historian
of The Black Company of the Dúnedain,
The Free Company of Arnor
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Durian: Dúnedain Ranger of the North: Rhudaurian Lineage
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Roleplay Repository

Climate change can disrupt their clocks – as link the climate warms, broods can change their cycles. Brood X might, if global mean temperatures continue to rise, transition to a 13 year cycle. But for now, they're on their customary ancient clock – link one of the most link specific, and most precise, biological clocks in the world.