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Metamorphoses · Chapter

Story of Thetis and Peleus explained

Thetis, a sea goddess, is pursued by Peleus and initially resists by transforming into various shapes.

What happens

Thetis, a sea goddess, is pursued by Peleus and initially resists by transforming into various shapes. Following the advice of Proteus, Peleus captures her while she sleeps and holds her through her transformations until she yields. Their union produces Achilles, the great hero.

Themes in this chapter

  • Transformation and Metamorphosis

    Thetis repeatedly changes shape—into a bird, a tree, a tiger—to escape Peleus, embodying the theme of physical transformation.

  • Fate and Prophecy

    Proteus's prophecy that Thetis's son will surpass his father drives Jove to give her to Peleus, and the prophecy is fulfilled with Achilles.

Characters to notice

  • Thetis

    The sea goddess who transforms into various shapes to avoid Peleus, but is eventually captured and marries him.

  • Peleus

    The mortal who pursues Thetis, captures her with Proteus's advice, and fathers Achilles.

  • Jove

    Jove renounces his love for Thetis to avoid a son who would surpass him, and bestows her on Peleus.

  • Achilles

    The son born from the union of Peleus and Thetis, destined to be a great warrior.

Key passages

  • A son you’ll have, the terror of the field, To whom, in fame and power, his sire shall yield.

    You will bear a son who will be a fearsome warrior, surpassing his father in glory and strength.

    Proteus's prophecy to Thetis about Achilles.

  • He scarce had bound her fast, when she arose, And into various shapes her body throws; She went to move her arms, and found them tied, Then, with a sigh, "Some god assists ye," cried, And in her proper shape stood blushing by his side.

    As soon as Peleus bound her, Thetis woke and tried to change form, but found herself tied; she sighed, admitted a god helped him, and resumed her true form, blushing.

    The moment Thetis surrenders to Peleus after being bound.