“[t]here is a secret about one of my rooms on which i feel disposed to try an experiment. so, gentlemen, none of you shall know who has the haunted chamber, until circumstances reveal it. i will not even know it myself, but will leave it to chance and the allotment of the housekeeper. at the same time, if it will be any satisfaction to you, i will observe, for the honor of my paternal mansion, that there’s scarcely a chamber in it but is well worthy of being haunted.”
what technique does irving use to build suspense in the excerpt?

Read this excerpt from "edward jenner and the history of smallpox and vaccination.” smallpox was introduced to europe sometime between the fifth and seventh centuries and was frequently epidemic during the middle ages. the disease greatly affected the development of western civilization. the first stages of the decline of the roman empire (ad 108) coincided with a large-scale epidemic: the plague of antonine, which accounted for the deaths of almost 7 million people. the arab expansion, the crusades, and the discovery of the west indies all contributed to the spread of the disease. unknown in the new world, smallpox was introduced by the spanish and portuguese conquistadors. the disease decimated the local population and was instrumental in the fall of the empires of the aztecs and the incas. similarly, on the eastern coast of north america, the disease was introduced by the early settlers and led to a decline in the native population. before it reached the new world, smallpox played a role in