According to Jennifer Westwood’s “Albion’ (1986) the chambered cairn at HU362855 is called ‘Trowie Knowe – the Troll Mound, though there are no specific legends associated with it.
Sheltland’s Trowies, are grotesquely ugly, dress in grey, and can only come out at night. If caught in daylight they turn to the stones they resemble. They share attributes with fairies elsewhere, exchanging their children for human babies, and abducting girls as wives, sometimes leaving a ‘stock’ in their place. See Haltadans for Trowies and music.