Nothing could have pleased his fancy more, therefore, than a request on the part of the lady of his chief to treat a subject of her assigning--namely, the dark mischief-making of a dwarf or goblin who had strayed from his unearthly master and attached himself as page to a human household. The subject fell in with the poet's reigning taste for strong supernaturalism. Gilpin Horner, the goblin page, though he proved in the sequel a difficult character to put to poetic use, was a figure grotesque and eerie enough to appeal even to Monk Lewis. At first Scott thought of treating the subject in ballad-form, but the scope of treatment was gradually enlarged by several circumstances. To begin with, he chanced upon a copy of Goethe's _Goetz von Berlichingen_, and the history of that robber baron suggested to him the feasibility of throwing the same vivid light upon the old Border life of his ancestors as Goethe had thrown upon that of the Rhine barons. This led him to subordinate the part played by the goblin page in the proposed story, which was now widened to include elaborate pictures of medieval life and manners, and to lay the scene in the castle of Branksome, formerly the stronghold of Scott's and the Duke of Buccleugh's ancestors. The verse form into which the story was thrown was due to a still more accidental circumstance, i.e., Scott's overhearing Sir John Stoddard recite a fragment of Coleridge's unpublished poem "Christabel." The placing of the story in the mouth of an old harper fallen upon evil days, was a happy afterthought; besides making a beautiful framework for the main poem, it enabled the author to escape criticism for any violent innovations of style, since these could always be attributed to the rude and wild school of poetry to which the harper was supposed to belong. In these ways _The Lay of the Last Minstrel_ gradually developed in its present form. Upon its publication in 1805, it achieved an immediate success. The vividness of its descriptive passages, the buoyant rush of its meter, the deep romantic glow suffusing all its pages, took by storm a public familiar to weariness with the decorous abstractions of the eighteenth century poets. The first edition, a sumptuous quarto, was exhausted in a few weeks; an octavo edition of fifteen hundred was sold out within the year; and before 1830, forty-four thousand copies were needed to supply the popular demand. Scott received in all something under eight hundred pounds for the _Lay_, a small amount when contrasted with his gains from subsequent poems, but a sum so unusual nevertheless that he determined forthwith to devote as much time to literature as he could spare from his legal duties; those he still placed foremost, for until near the close of his life he clung to his adage that literature was "a good staff, but a poor crutch."