Having quick-wittedly survived the battle of Trafalgar, Ethan is rushing to rescue "Egyptian priestess" Astiza and son Harry from imprisonment by a ruthless mystic who seeks revenge for disfigurement, and an evil dwarf alchemist who experiments with the occult on Prague's Golden Lane. Using death as his ruse, and a pair of unlikely allies - a Jewish Napoleonic soldier and his sutler father - Ethan must decipher clues from Durendal, the sword of Roland.