Since it showsd up in Find, use the following (from Help menu):
1. In the Finder, choose File > Find.
2. Select the location where you want to perform the search.
3. Define your search using the pop-up menus.
Choose Other from the pop-up list, then select Visibility in the search
attributelist. To add this attribute to the Find dialog's pop-up menu for easy
access, select "Add to Favorites." Click OK to finish.
Choose Invisible from the second pop-up menu.
4. If you want, click the Add (+) button to add additional search criteria.
5. Type letters or words in the search box to begin searching, or click the Search
Again button in the lower-right corner of the window.
You can save your search as a Smart Folder if you wish. Click Save, then type a name and choose a location for the folder. Select "Add to Sidebar" to access the folder more conveniently later.
MamaMoose