In the main hallway on your way to the pillar if you look at the map, it shows an acess tunnel....My question is How do I get it open?...I've searched everywhere in the Ruins/Cavernous area, thrown fire balls, ice balls, and lightning bolts at everything except the NPC's of course. Its bugging the hell out of me. :poke:<-----Me

Since you didn't mention this... You are there for the Mage's Guild quest :http://www.uesp.net/wiki/Oblivion:Vahtacen%27s_Secret

I was.....But I finished the Guild Questline and I was visiting random places....and when I went in...I had some gauntlets on that Detects Life 180pts and I saw 4 dots, so I'm assuming that its two wraiths behind the wall.

Its opening mechanism is on the other side of the wall. Like many other Aleyid ruins and forts, the designer made getting out easier than getting in.