Did you mean the "Works" tab in the navigation bar or the "Written Works" category?
For the "Written Works" category, I could put the two new pages in a new "Translations" category and add that category to "Written Works" as a subcategory. I could also further organize them by sorting them into sub-sub-categories by either language or work to which we could then add future translations if you want.
For the "Works" tab, I do not have permission to edit the Wiki-navigation page (I'm in a discussion with Automatthew about making another change to it). I'm also wondering whether you would prefer to organize it by language or work. Here are the proposed trees for each:
Mantra yang Rusak (A Magic Broken)
Särjetty taika (A Magic Broken)
A Magic Broken
Mantra yang Rusak (Bahasa Indonesia)
Särjetty taika (Finnish)
On a side note, would you prefer that I contact you specifically for future vandals, or one of the other admins? I'm a little split on this issue since on one hand vandal blocking is a relatively mundane task, but on the other hand, I'm aware of the new policy on your blog regarding troll bans and vandal blocking, so I'm not sure if you want to be informed every time a vandal comes along.
I made a mistake. I was thinking that there were 4 levels of subcategories on the navigation bar, but there's only 3. This means that the "Translations" button can be added to the "Works" tab, and the drop-down menu link for A Magic Broken can be added under that, but no further subcategorization can take place.
To rectify this, I created a separate page called List of A Magic Broken Translations that will list all of the translations for A Magic Broken that can be linked to from the "A Magic Broken" drop-down menu link on the navigation bar (this is similar to a solution that Automatthew used for the "Publications" button).
I also looked up the Help:Wiki navigation page, and I found that there are limits on how many links can be put on the navigation bar. There are only 4 Level 1 links (tabs) allowed (not including the "On the Wiki" tab), 7 Level 2 links per Level 1 link (the buttons under the tabs) and 10 Level 3 links per Level 2 link (drop-down menus under the buttons).
This won't be a problem for now, but if you have translations for more than 10 Selenoth works, we might have to come up with a different system to link to them all.
I added the "Translations" button to the navigation bar, and the two pages for the lists of translations under that. If there's anything I've missed or anything else you need me to do in regards to this, please let me know.