Work Text:
Óin, son of Gróin, was a master of the healing arts, though he never stopped studying to learn more. He was a student of the metaphysical arts as well, interested in a young age in signs and portents, auguries of weather, dreams, fire and water, stone cast and bird flight. When he first heard of Thorin's expedition, he employed all the methods he knew, and by and large they agreed that the time was right, if not precisely propitious.
He never did learn to tell a thrush from a wren, but he became good friends with the ravens of Erebor.