The Charlemagne Pursuit (Cotton Malone Series #4)

NEW YORK TIMES BESETSELLER • “Those who relish suspense in the Da Vinci Code vein will snap this one up, the best yet in the series.”—Publishers Weekly (starred review)

As a child, former Justice Department agent Cotton Malone was told that his father died in a submarine disaster in the North Atlantic. But what he now learns stuns him: His father’s sub was a secret nuclear vessel lost on a highly classified mission beneath the ice shelves of Antarctica.

Twin sisters Dorothea Lindauer and Chr...