Hidden away on the high peaks of Persia and Syria, the shadowy Order of Assassins (hashashin) ensures its survival by maintaining agents in the courts of rival kings and statesmen, and striking when the time comes. But a new enemy hails from the East. The Mongol hordes lay waste to Persia, and soon look toward the mountains and the defiant Order of Assassins. This is the story of the Mongols vs. Assassins war.