What is progue?

I think you meant to say "prologue".

A prologue is an introductory section of a literary work, usually appearing before the main text. It can serve to provide important background information, to set the tone or mood, to introduce important characters, or to establish the plot.

Prologues can be found in various forms of literature, including novels, plays, and screenplays. Some famous works with prologues include Romeo and Juliet by William Shakespeare, The Canterbury Tales by Geoffrey Chaucer, and The Lord of the Rings by J.R.R. Tolkien.

However, some writers and critics argue that prologues are unnecessary, or can be seen as a crutch for poorly written stories. As a result, some publishers and editors discourage the use of prologues in modern literature.