Board Thread:Online Discussion/@comment-121.54.104.214-20130405115240/@comment-6881629-20130405122502

You need all eight of the Skyrim Dragon Priest Mask's then you put the Wooden Mask on in the shrine you found it in. When it takes back in time place the eight masks on the pedistal and the ninth mask will appear in the center (remember to get the mask's back before leaving) the wiki page to help you is here.