The Ecclesiastical History of the English People, by The Venerable Bede. Unabridged audio.
I am a sucker for church history, but it took me a while to get around to reading the most famous piece of church history from the first millennium.
The focus is on the Christian history of the British Isles. This has been a particular interest to me since I ran across the music of the UK-based band Iona more than 20 years ago. Bede hits the main characters and locals that I was hoping for, such as Iona, Lindisfarne, Columba, and Columcille.
There are certainly moments of dryness in the accounts, as many of the people and circumstances have been lost to time (save this book). But many of the accounts were colorful, and so although some of the chronologies did not stick with me, many of the stories did. The relationships between the various British peoples, both with each other and with the authorities in Rome, form a backbone for the history.
In terms of theology, the issue that Bede spends the most time on is the correct dating for Easter. Although backing the Roman interpretation, he is gracious to other believers who believe differently.
Source: I listened to audio version of the book, provided free by LibriVox. An offshoot from The Gutenberg Project, LibriVox records public domain books, and makes them available on their website and through iTunes.