"The beast sprang. Suddenly, out of the mist to our right, a man sprang at the beast and they met in mid-air. There was a huge cry of pain as man and creature fought. Or was it a man? Maybe it was a wolf. There was such a flurry of fur and limbs that I couldn't be sure."
The Wulver is a kind of werewolf that is part of the folklore of the Scotland. It kept to itself and was not aggressive if left in peace. Bakky tried to converse with it after it had saved his, Athur's and his father's lives, but it headed off rather than hanging around. Unlike most 'werewolves' the Wulver does not change from human to werewolf. It was never a human being.
Jessie Saxby, in Shetland Traditional Lore (Chapter 9), writes, "The Wulver was a creature like a man with a wolf's head. He had short brown hair all over him. His home was a cave dug out of the side of a steep knowe, half-way up a hill. He didn't molest folk if folk didn't molest him. He was fond of fishing, and had a small rock in the deep water which is known to this day as the 'Wulver's Stane'. There he would sit fishing sillaks and piltaks for hour after hour. He was reported to have frequently left a few fish on the window-sill of some poor body."