"If you don't have these spells on hand (although everyone should have fire and frost spells by now, surely), then you're probably not alone. We're not even sure that there is a spell that casts fortify magicka on a target; you may have to make one at the Arcane University. Otherwise, if you're of the lazy sort, just search the chest near Denel, which has scrolls for each of the effects that you need. Again, cast them in order of Fire, Frost, Damage Magicka, and Fortify Magicka, and keep in mind that some of the scrolls require you to be within touching distance of the pillar. Casting all of them, in that particular order, will unlock the pillar and reveal a passage to Vahtacen Lorsel."
http://www.gamespot.com/features/6147085/p-72.html
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Som der står er der nogle spells hvor du skal stå lige foran søjlen, og ikke et par meter fra den.
Vis ikke dét virker, så aner jeg det ikke.