THEORETICAL TIMELINE
Casca leaves the lands of the Franks and whilst trying to defend a village from raiders is captured. He finds they are Vikings and contain descendants from Helsfjord. Recognised as Lord Casca he soon leads the group on raids to England, France and Spain. After a few generations he decides to move on and travels east.
He joins up with other Vikings who are exploring vast lands to the east and they sail down great rivers, joining two chieftains in founding a new city they call Kiev. After some years he wanders south west and meets a tribe of mounted nomads crossing the mountains, looking for a home. These Magyars take Casca as one of their own and they settle in the plains of Hungary, raiding lands all around. Casca's life settles down until his village is victim to plague and Casca once more walks off for a new life.
THEORETICAL TIMELINE
Casca returns to the lands of Kiev and joins their leader Svyatoslav's elite Viking guard, campaigning against the Khazars and Bulgars. After Svyatoslav is killed his successor sends the Viking(or Varangian)guard to Constantinople as a gift to the emperor Basil. Thus Casca becomes embroiled in the long war against the Bulgars which ends with the total victory at the Battle of Struma (1014). Casca leaves shortly afterwards, the war over.
He then hears of great explorers to the north having discovered lands far to the west and heads north, crossing the seas in Viking boats to a cold land of ice. Joining up with free living adventurers he crosses another sea to reach land he recognises - the land he reached on his way to the Teotecs - but the local native population (Skraelings) attack and after a few years the settlement is abandoned. He returns to Europe and buys a farm.
Casca's time as a farmer suddenly ends in violence as raiders destroy the farm. Casca tracks them the Caen where Duke William the Bastard is raising an army to attack the Saxon lands of England. They cross over and defeat Harold's Saxon army at Hastings (1066) and as part of a reward Casca is allocated the land around Stokeham. He kills the last of those responsible for destroying his farm and settles down with Aveline, a Norman noble.
THEORETICAL TIMELINE
After a few years at Stokeham, Casca has to leave, as he always does, and travels south to Sicily where Robert Guiscard is carving out a new Norman kingdom there. Casca joins the army of mercenaries and helps to build a new kingdom. But news of the collapse of the Byzantine army to the east draws Casca over to Greece and Asia Minor where civil war is engulfing the empire. Takign sides with the promising general Alexius Comnenus, Casca helps to win the war and become an important member of the new imperial household.
But time comes for Casca to move on once more and he heads east towards Persia.
Casca is captured by Arabic slavers and heads for the markets in Baghdad, but is diverted en route to Castle Alamut, home of the Assassins. Inducted into their sect he takes on the role of an assassin. He fails in one job, however and soon finds enemies on all sides. Eventually he is rescued and returns to the west, disguised as a knight.