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.
The country of Scotland is approximately the size of the state of Maine. Western Scotland is fringed by the large chain of islands known as the Inner and Outer Hebrides (pronounced 'heb-rid-deeze'). Off the north coast are the Orkney and Shetland Islands.