Ring of Fire (Charles E Gannon) Books in Order

Charles E Gannon's Ring of Fire work sits inside the larger 1632 alternate-history universe, where the modern town of Grantville lands in seventeenth-century Europe and history immediately stops behaving itself. Gannon's contributions, written with Eric Flint and later with Robert E. Waters, lean into the parts of that premise where politics, religion, trade, and military technology all collide at once.

One branch follows the papal storyline. 1635: Papal Stakes and 1636: The Vatican Sanction are full of church politics, rival claimants, assassins, bodyguards, and rescue missions. They work because the books never treat religion as background wallpaper. In this corner of the series, doctrine, legitimacy, and personal loyalty can matter just as much as guns and planes.

Another branch heads west.

1636: Commander Cantrell in the West Indies and 1637: No Peace Beyond the Line push into the Caribbean and the struggle over oil, empire, and sea power. Eddie Cantrell and his allies are trying to remake the balance of power with steamships, improvised strategy, and uneasy coalitions that include Europeans, colonists, and native peoples. 1636: Calabar's War expands that Atlantic frame again through Domingos Fernandes Calabar and a more personal fight that is also tied to slavery and imperial violence.

The tone across these books is lively and crowded. There are a lot of moving parts, but that is the point. Gannon seems especially comfortable in the Ring of Fire spaces where every tactical problem is also a political problem, and where a local decision can ripple outward across continents.

So this page is useful if you want the Gannon-heavy routes through the 1632 universe. It helps separate the Vatican arc from the Caribbean one and shows how his books fit into the larger shared timeline.