Adding a missing book to a series

[Kjorban]

I just noticed that Siege! is not part of the Step Into History Series. I am not sure how to add it to the series without creating a whole new series.

[Emily]

You will want to read the Librarian Manual:
https://help.goodreads.com/s/article/...

I don't know that this is a series for Goodreads purposes, however.

[Kjorban]

Thank you