From what takes place in Volume Nine, it appears that Volume 10 will be placing an emphasis on trying to find an artifact that the unicorn says should be able to save Mamoru if it’s used with Sailor Moon’s Legendary Silver Crystal. However, from what is shown on the last page of Volume Nine, I think it’s not going to be Sailor Moon undertaking the search for the artifact.
By the time I finished reading Volume Nine, I had a better understanding of the villains. Combining this knowledge with the stakes that have been placed on Mamoru’s storyline, I really want to read Volume 10 in order to find out how this story arc will advance.
Unfortunately no preview was included at the end of this volume, either in Japanese or in English, so I truly have to wait until I can read Volume 10 to have any kind of idea of what will happen.
If you’ve made it up to this point in the Sailor Moon manga series, then I suspect that you’ll enjoy reading Volume Nine.