Some feel they basically cover the same ground, and others think that while both refer to age categories teen covers 12-14, and YA is aimed at about 14+. For the latter, the later Harry Potter books, in which torture and murder come to the fore after the gentler series beginnings, would count as teen.
Isle of Coll. One of Scotland's Inner Hebrides, the island of Coll, 13 miles long and 3 miles wide in parts, is nowadays home to some 150 people. Located to the north-west of the Isle of Mull, it is just north of neighbouring Tiree.
Orkney Islands Description. Located off the northern coastline of mainland Scotland, the Orkney Islands, an archipelago of near 70 islands (17 inhabited), cover an area of 975 sq km.long with the Shetland Islands, the Orkney Islands were settled by Norwegians during the late 8th and early 9th centuries. First served as the headquarters for Viking expeditions, the islands were later annexed in 875 by the Norwegian king.