Help with adding new book to series

[Brittany]

I added a new book for an exisiting series, but I must've done something wrong!

Here is the first book >> https://www.goodreads.com/book/show/4...

Here is the second book (the new one) >> https://www.goodreads.com/book/show/5...

And here is the series page >> https://www.goodreads.com/series/2516...

Could somebody please help me get these connected to each other? Thank you so much in advance!!

[Olivera]

Done