Suspense is the act of putting someone in a heightened emotional state and keep them guessing about what will happen next. It is one important tool that is used by writers.
An author builds suspense by:
Using mystery
Giving a character a complicated past
Making use of flashbacks and foreshadowing
Make use of red herrings
Therefore, the major aim of creating suspense in an article or literary work is to keep the audience onn the edge.
