Read it through once

A deep hush pervaded the Abbey. At this impressive moment, a startling apparition intruded upon the scene--an apparition observed by none in the absorbed multitude, until it suddenly appeared, moving up the great central aisle. It was a boy, bareheaded, ill shod, and clothed in coarse plebeian garments that were falling to rags. He raised his hand with a solemnity which ill comported with his soiled and sorry aspect, and delivered this note of warning--