“Isabella” is in ottava rima, “The Eve of St. Agnes” in the Spenserian stanza.  This exquisite creation has all the insignia of romantic art and has them in a dangerous degree.  It is brilliant with colour, richly ornate, tremulous with emotion.  Only the fine instinct of the artist saved it from the overladen decoration and cloying sweetness of “Endymion,” and kept it chaste in its warmth.  As it is, the story is almost too slight for its descriptive mantle “rough with gems and gold.”  Such as it is, it is of Keats’ invention and of the “Romeo and Juliet” variety of plot.  A lover who is at feud with his mistress’ clan ventures into his foemen’s castle while a revel is going on, penetrates by the aid of her nurse to his lady’s bower, and carries her off while all the household are sunk in drunken sleep.  All this in a night of wild weather and on St. Agnes’ Eve, when, according to popular belief, maidens might see their future husbands in their dreams, on the performance of certain conditions.  The resemblance of this poem to “Christabel” at several points, has already been mentioned,[35] and especially in the description of the heroine’s chamber.  But the differences are even more apparent.  Coleridge’s art is temperate and suggestive, spiritual, too, with an unequalled power of haunting the mind with a sense of ghostly presences.  In his scene the touches are light and few; all is hurried, mysterious, shadowy.  But Keats was a word painter, his treatment more sensuous than Coleridge’s, and fuller of imagery.  He lingers over the figure of the maiden disrobing, and over the furnishings of her room.  The Catholic elegancies of his poem, as Hunt called them, and the architectural details are there for their own sake—­as pictures; the sculptured dead in the chapel, the foot-worn stones, the cobwebbed arches, broad hall pillar, and dusky galleries; the “little moonlight room, pale, latticed, chill”; the chain-drooped lamp: 

  “The carven angels ever eager-eyed”

that

  “Stared, where upon their heads the cornice rests,
  With hair blown back and wings put crosswise on their breasts.”

Possibly “La Belle Dame sans Merci” borrows a hint from the love-crazed knight in Coleridge’s “Love,” who is haunted by a fiend in the likeness of an angel; but here the comparison is to Keats’ advantage.  Not even Coleridge sang more wildly well than the singer of this weird ballad strain, which has seemed to many critics[36] the masterpiece of this poet, wherein his “natural magic” reaches its most fascinating subtlety and purity of expression.

The famous picture of the painted “casement, high and triple-arched” in Madeline’s chamber, “a burst of richness, noiseless, coloured, suddenly enriching the moonlight, as if a door of heaven were opened,” [37] should be compared with Scott’s no less famous description of the east oriel of Melrose Abbey by moonlight, and the comparison will illustrate a distinction similar to