Over at Public Query Slushpile is a query for CALLARION AT NIGHT, my in-revisions WIP that's my first effort at writing steampunk fantasy (which is great fun as I can use my knowledge of thermodynamics to make some fairly cool tech).
The current version of that story includes a prologue set when the MC, a half-nymph named Moriah, is ten years old and sets up the reason for why her mother, Dahlia, runs out on the family. I used this as a way to show that Dahlia wasn't a complete tool for leaving her daughter and husband by letting the reader see, through Moriah's father's eyes, why Mom decided to leave.
I'm struggling with keeping it in. The prologue offers information the reader might not otherwise see, but I wonder if it would be better to introduce it through Moriah's eyes instead. That way the reader discovers why her mother left right along with her. It's a toss-up for me -- I love the audience having insight the MC doesn't, but I also feel the prologue can be cut without sacrificing the story.
So I wonder what the general opinion is on having prologues. Do you include it if it's interesting backstory or only if it drives the plot forward? Thoughts?