For one thing, the old tale was not first told or invented by this poet. So much is clear from investigation of the folk-tale analogues. Even the legendary association of the Scylding court with a marauding monster, and with the arrival from abroad of a champion and deliverer was probably already old. The plot was not the poet's; and though he has infused feeling and significance into its crude material, that plot was not a perfect vehicle of the theme or themes that came to hidden life in the poet's mind as he worked upon it. Not an unusual event in literature.