What would be frightening about me jumping out of the bush wearing a pig mask is not the sudden surprise, not me, and not the pig mask, but that the ordinary world had split open for a moment to reveal some possibility never previously considered.
Peter StraubFrom a tale one expects a bit of wildness, of exaggeration and dramatic effect. The tale has no inherent concern with decorum, balance or harmony. ... A tale may not display a great deal of structural, psychological, or narrative sophistication, though it might possess all three, but it seldom takes its eye off its primary goal, the creation of a particular emotional state in its reader. Depending on the tale, that state could be wonder, amazement, shock, terror, anger, anxiety, melancholia, or the momentary frisson of horror.
Peter Straub