In exile in Holland, Hugh Herriot recalls the exploits of his youth as a follower of Bonnie Dundee who tried to win back Scotland for the Catholic King James and whose death during a victorious battle proved to be a final blow for the Jacobite cause.
In eleventh-century northern England, Frytha, a young Saxon girl left orphaned and homeless by a Norman raid, finds refuge in the Lake District stonghold of Jarl Buthar, a Norse leader determined to resist the invading Normans at all cost.
A young Roman army medical officer, sent to Britain during the period of waning Roman rule, befriends a kinsman with whom he shares an adventure of intrigue, exile, and underground activity with the Lost Ninth Legion.
A young centurion ventures among the hostile tribes beyond the Roman Wall to recover the eagle standard of the Ninth, a legion which mysteriously disappeared under his father's command.
A young centurion, invalided out of service in Britain, ventures into hostile territory above the Roman Wall to discover the fate of the lost Ninth Legion.
Instead of leaving with the last of the Roman legions, Aquila, a young officer, decides that his loyalties lie with Britain, and he eventually joins the forces of the Roman-British leader Ambrosius to fight against the Saxon hordes.
A young Roman army medical officer, sent to Britain during the period of waning Roman rule, befriends a kinsman with whom he shares an adventure of intrigue, exile, and underground activity with the Lost Ninth Legion.