Sea-Trow

"Every night, it is the same story - the damned trow comes ashore and gorges itself on our day's catch. Collum tried to stop it, and got eaten up for his trouble. We tried starving it - just not fishing for a day - and it ate two sheep and the Maclean's dog, and if it had broken through the door before dawn it would have had one of us as well. We can't go on like this - it has to be stopped!"

— Shamie, fisherman from the village of Aith on Zhetland.

The thousand children of Mòr Cuan Cailleach are known as the Sea-Trow, and they are a plague upon the inhabitants of the Norður Islands, the Arcaibh Islands, and the Kattalands. They are huge creatures that would be over nine feet high if they stood upright. They have the heads and faces of sea lions and bulging goatlike eyes. Their bodies are covered with patchy fur, and their long arms have huge, paddle-like hands with claw-tipped fingers. Their lower bodies have hind flippers like those of the sea lion that they can rotate to support their weight while walking on all fours. They rarely walk bipedally, but will rear up to attack with claws and teeth. They will also rear up to roar, a terrifying sound that sounds halfway between the roar of a sea lion and a crashing wave.

Sea-trows will attack fishing villages and boats at night, intent on stealing as many fish as they can devour. They will ignore other creatures unless they are attacked or prevented from gorging themselves on the village's catch. If they are confronted, they react with mindless rage, lashing out with enormous strength and fury. If you stand back and let them take the fish, they won't attack - but they will return night after night, stealing the catch over and over. If they do not find enough fish to sate their hunger they start in on anything else they can find - pets, livestock, and people. They only attack at night, since they cannot bear the touch of the sun - during the day, they sleep deep in sea caves, protected from the burning light.

According to legend, if the Sea-Trow is killed, its spirit flees back to Mòr Cuan Cailleach's womb, and is reborn again. But the newborn monster doesn't seem to return for revenge - usually.