thanks,the doors thats mazzy is locked behind, i found the key for some reason i had not picked it up.

I have completed the shadow lord quest but can not seem to find the object that opens the dorrs next to the ritual statue room, any ideas?? ( thanks )

I'm not sure which door you are talking about but if you are referring to one of the three magical doors: you need sun gems to open them. Since there are three doors and only two gems, one of the doors will remain closed (but you can pass it using a longer route.) Since you've already completed the quest, there's no need for you to open that door.