Mull is an islay to the north of Islay, Colonsay, and Jura, with a population of ten thousand people. Many more come here in times of war, most of them from the mainland, to be safe under the guard of Mull's many fortifications.

The island itself is too big to be one great fortress, unlike many of those surrounding it. It is, instead, one of the major population centres of the southern areas of the Lordship of the Isles, and is one of the few places where great markets may sell any item from anywhere in Europe and beyond. There are other markets on Skye and Islay, but the former of these islands is harder to access from Colonsay, which is a centre of communication and is used by traders to store their wares or as a base from which to export, and the latter is already dominated by Gaelic produce. As a result, Mull is the only place in the whole of northern Britain where you may buy things such as weapons from Spain, peat and coal from Ireland, tin from Cornwall, walrus ivory from Norway, and ornaments from Brittany. You may also find spices here, sold by English and Scots merchants, that are easily mixed in with native foods to create the most spectacular foods you can find in western Europe.

Mull also guards access to the Firth of Lorn, which leads into the middle of the Highlands and allows the Lordship of the Isles to trade and maintain relations with the Highland clans, many of whom are allies. It also allows the Lordship of the Isles to trade cattle, which are sent along the entire length of the Great Glen. As a result of this trade, Mull has several large harbours (I've heard a lot of records of native Highlanders that place the largest of these at either Rubha nan Oirean or Creag a'Chaisteil - the lack of architectural evidence is explained by the fact that these ports were likely destroyed along with the birlinns they had helped to built in 1493, when the Lordship was forfeited). These harbours can hold up to a hundred ships each, although more often provide accomodation for about fifty.

The seat of political power here is Aros Castle, a stronghold of the ruling dynasty on the eastern side of a bay in the northeast of the island, although the most powerful of the local rulers resides at Duart Castle and it is from here that the affairs of the island are managed.

Other fortifications are Dun Ara, Cairn na Burgh in the Treshnish Isles, and Moy Castle, although many ancient duns are still occupied, such as Dun Urgadul, Dun Port na Callich, and An Sean Dun.

Access to the island is easy, especially if you are arriving from another island such as Islay. Colonsay has one of the easiest trips to the island, if you don't mind the crowds and can spare some things to give to a local to avoid having to compete with others in trying to bargain with traders and soldiers.