Is there something that needs to be done to get Azura's Star to work? I have it in my inventory but it never seems to fill up with a soul - I also have empty Common and Grand soul gems in my inventory and sometimes when I kill enemies (I have a Soul Trap-equipped sword) I get a message saying "there is no Soul Gem in your inventory large enough to capture the trapped soul". What does this mean?

You're probably trying to capture the soul of a humanoid, you need black soul gems for that.

And you can't get a black Azura's Star if you were wondering. [img]smile.gif[/img]

Where can I get black soul gems?

Put a grand soul gem at a necromancer altar and pray at it.

You can sometimes find black soul gems as loot on the bodies of Necromancers.

There are four altars and they become apparent during the mages guild questline. You are required to visit one but the other three aren't essential. That said, my character doesn't want to finish the mages guild questline without cleansing these places first. I've found Wendelbek, can someone give me a rough pointer to the other two?

Don't get caught wity black soul gems on you while at the arcane University you can be ejected from the
Mage guild.

How do they catch you?