Several of Serraillier's other writings relate the exploits of a famous epic hero.

Beowulf the Warrior focuses on the great adventures of the Scandinavian hero Beowulf, as depicted in the most famous poem from the Old English period. The Ivory Horn, an adaptation of the Old French epic The Song of Roland, depicts the actions and death of Roland, the most preeminent of Charlemagne's knights. In The Challenge of the Green Knight, which is adapted from the Middle English romance Sir Gawain and the Green Knight, Serraillier recounts the adventures of Sir Gawain, one of King Arthur's most valued knights. Robin in the Greenwood and Robin and His Merry Men tell the story of this quasi-historical figure, celebrated in so many English ballads.