Stephen lawhead has 2 series that I would recommend
Song of albion (3 books) if your a reader than you'll finish all 3 books in about a week (I got so into them I finished all 3 in 4 days)
And the pendragon cycle (5 books)
Along the lines of outlander is son of the sword( 4 books all fast reads)
Which reminds me....song of albion is like outlander too.... But its set in the Celtic otherworld and the last line in the last book have me chills!
Enjoy your trip, and the books you end up bringing along
Kfp
Irish diplomacy: is telling a man to go to he)) in such a way that he looks forward to the trip!
If you are into Scottish history, you might consider "Scotland, The story of a Nation" by Magnus Magnusson. It is a very well written and entertaining book. Warning: It is a very thick book with 700 plus pages but he does an excellent job of making history come alive.
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