Ballantyne (Imogen Robertson) Books in Order

Imogen Robertson’s Ballantyne books sit inside Wilbur Smith’s wider adventure world, but they follow a clear line through Penrod Ballantyne and the people tied most closely to him. These are not drawing-room historicals. They are sweeping novels of war, imperial ambition, marriage under strain, and families trying to stay whole while history keeps dragging them apart.

Penrod is the anchor. He is brave, ambitious, and very much shaped by military duty, which makes him effective in a crisis and difficult in private life. The emotional counterweight is Amber Benbrook, the woman he loves, who has already survived more than most characters in a quieter series would ever be asked to bear. Their relationship is central, because Robertson does not treat romance as decoration here. Love changes where people go, which side they stand on, and what they are willing to risk.

In King of Kings, that tension sends the story from Cairo to Abyssinia. A jealous former lover helps break Penrod and Amber apart just as larger political pressures are building. Amber heads east with her twin sister Saffron and Saffron’s husband, Ryder Courtney. Penrod, adrift and angry, joins the Italian military effort as invasion talk hardens into real danger. That split gives the novel its shape. Personal hurt and imperial aggression move on the same track.

Penrod is always most interesting when duty asks him for one thing and his heart wants another.

By Fire on the Horizon, the action has shifted again, this time to South Africa on the brink of the Boer War. Penrod is sent to Mafeking to raise and train men. Amber travels with him, hoping for a shared life that history will finally stop interrupting. Of course, it does not. War breaks the family open, and the wider Courtney connection matters more than ever, especially once Leon, Saffron and Ryder’s son, runs toward the front instead of away from it. The books understand that a conflict is never only about strategy. It is also about children watching adults, marriages stretched by absence, and people discovering too late what kind of courage they have.

The tone here is high stakes and outward-looking. Expect campaigns, long journeys, political currents, and moments where private grievances get caught inside public violence. Robertson keeps the human line visible, but these books are built for readers who like their historical fiction broad in canvas and restless in motion.

If you come to the Ballantyne side of Robertson’s work, come expecting pressure, movement, and hard choices. These novels follow soldiers, survivors, spouses, and relatives across a continent-sized argument about power. The appeal is not just adventure. It is watching one family try to hold onto itself while the map keeps changing underneath it.