Saint Robert and the Devil

After the disaster that was Bannockburn, the English army returns home in disarray, running southwards on land and sea, fleeing the triumphant Robert the Bruce.
However, one man decides to go north, into the jaws of the Scottish horde. Young squire Richard de Mauville is on a mission: to find and return the body of his beloved knight and mentor to his home and then to fight on. Strange, then, that it will be an Englishman who stands in his way...