Please add this book to my series

[Piper]

This is the series: https://www.goodreads.com/series/3172...
And this is book four: https://www.goodreads.com/book/show/5...

Thank you!

[Sally]

Hello! I added it, but I'm curious; since the series title includes "trilogy" and this would be the fourth installment, is this supposed to be a "primary" work for the series or is more like an extra/novella? Currently it's set as a primary work within the series, but I can change it if that's not the case.