As Dust to the Wind. Crusader Chronicles, #6

No man can escape his destiny, not even the famed Conrad Wolff whose named is revered and feared in equal measure throughout the Baltic following nearly thirty years of bloodshed. Conrad and the Sword Brothers are now masters of all they survey. The crusader state they have created by the sword is strong and prospering but peace is only temporary, a cruel illusion. The riches of Novgorod, now threatened and weakened by the Mongols, is an irresistible target for Bishop Hermann and the Papacy, leading to a new and bloody crusade against the Russians.
For Conrad the appearance of an enemy from his past will reawaken old wounds and a thirst for revenge. But his actions will have a catastrophic effect on the Sword Brothers and will set in train a sequence of events that will lead to a final confrontation between East and West on the frozen surface of Lake Peipus. This battle will be a defining moment not only for Conrad Wolff and the Sword Brothers but also for European history.
This, the final volume in the Crusader Chronicles series, sees Conrad and the Army of the Wolf embark upon their final, fateful campaign.