"The dancing would kill her eventually."
A Moth in Darkness by Frances Pauli
The first line of the book has to be intriguing enough to grab your reader by the you know whats and drag them to the end of your plot. Look at the great books in history - they all do it. Something in every line of every book that anyone has ever like ever in the history of ever does just that. I promise it's true. It's as true as the need for editing.
I wish I had a bunch of books right here that I could just grab and look into to get the first line, but i don't, so you'll have to take my word for it. You can probably go look, though.
Ciao for now,