Series has 2 names

[Mary]

The author Mara Li has written a dutch series which was at first named Eiland in de mist.
But now she has named the series "De gave van de Selkie".
You can see this at the website of the publisher: https://dutchventurepublishing.com/on... ( or here)

Someone has added the third book in the series, with the new series name but the first and second book have the old name.
The third book isn't linked to the first two.

Is it possible to have two names or should the last name be used? I am not sure what is correct, but it would be nice if all three books are linked in a way.
Hopefully anybody can help with this.

[Renske]

On the series page we can use the most recent series name, but the book titles need to stay as they are, with the name used when those editions were published. A new edition of those works can have the new name.

I added book 3 to the series page and edited the name.

[Mary]

Thanks