The Charlemagne Pursuit - Steve Berry

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 Christl
Falk are also determined to find out what became of their father, who died on the
same submarine-and they know something Malone doesn't: Inspired by strange clues
discovered in Charlemagne's tomb, the Nazis explored Antarctica before the Americans.
Now Malone discovers that cryptic journals penned in "the language of heaven," conundrums
posed by an ancient historian, and his father's ill-fated voyage are all tied to
a revelation of immense consequence for humankind. As Malone embarks on a dangerous
quest with the sisters, he will finally confront the shocking truth of his father' s death and the distinct possibility of his own.