The expression was that of agony—the agony of intense bodily pain; but a menace scowled upon the brow, and a few sprinklings of blood added to its ghastliness. Yet it was not all these characteristics—it was some horror of the mind, some inscrutable antipathy awakened by this picture, which harrowed up my feelings. What technique does Irving use to build suspense in the excerpt?

may i know the title of the book?

answer: hey wheres the picture for this, chat with me if u want

explanation:

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.