This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Trow (Orkney and Shetland)
A trow (also trowe, drow, or dtrow) is a malignant or mischievous fairy or spirit in the folkloric traditions of the Orkney and Shetland islands. Trows may be regarded as monstrous giants at times, or quite the opposite, short-statured fairies dressed in grey.
Trows are nocturnal creatures, like the troll of Scandinavian legend with which the trow shares many similarities. They venture out of their 'trowie knowes' (earthen mound dwellings) solely in the evening, and often enter households as the inhabitants sleep. Trows traditionally have a fondness for music, and folktales tell of their habit of kidnapping musicians or luring them to their dens.