Need Hint for Locked Door into School of Wizardry

The stainglass door into the School of Wizardry remains locked despite my efforts to qualify for entry. Here's what I've done to qualify: [1] Killed the Burning Frost Dragon in the East Tower and obtained a "Red" key, [2] Used the Icy Skeleton Knuckles on each of the seven pointy crystals (within two minutes) in the North Tower and experienced a transformation of sorts [3] Stepped twice onto the purple magic emblem to enter the School of Wizardry ante-chamber where the locked stainglass door bars my way.

I need a hint as to what I'm overlooking. I tried drinking the dragon's blood to no avail (and wasted it no doubt). I've done the two towers numerous times. Throw me a bone?

When you say "transformation" of sorts.... can you be more specific about what happened in the ice tower?

ok..here puppy...jump up for your bone...lol ..couldn't resist

Sounds silly ... but do you still need a wizard in your party for this quest ?

Wuf Wuf
By "transformation of sorts", I mean... upon casting the 7th Icy Skelly Knuckle at the last remaining pointy Crystal in the icy north tower, the game took control and played a visual effects (VFX) upon my character: a 3 second white-ish glow and "whooosh" occurred. I was expecting to obtain a Key similar to the "Red" key from the East Tower (after killing the top floor's Dragon). But, the only thing that showed up in my inventory was the "Icegrinder" (not exactly sure when it was gifted - probably the very first time I interacted with the ice crystals).

Icegrinder +2 [Level 12+] description:
Cold 1d6 dmg, Fire Resist 15/-, REDUCED Save vs Cold -2, and ... the following unique power:
"special power of this axe can only be used when the wielder is at 50% or fewer of his/her max hit pts. (1 use/day)

I think I'm good up thru casting the knuckles on the crystals. Then, I would rush down and out again, get into the ante-room and try to enter the locked stainglass door (says a special key is required).

Also note that this character has 1 Wizard level in his career taken at level 3. AwooOOOOOooooo

OK... last I remember, when you get the "whoosh" and the icy vfx,
you may want to investigate the inside of the ring of pillars. There should be something on the ground for you.

Icegrinder is gained in the area of the polar bears, when you come close to the corpse.

Yeah.. My memory is telling me the same thing as Master Crideas' .... You should be noticing a small bundle in the middle of the ring of pillars ....

Ahh...so. You were all correct, there was a key (I thought so!) but I was standing on it when it appeared with a "whoooosh"! Okay, my Spotting skill is quite low for a Rogue .

Thanks. It's all good.

awesome! have fun with the wizard school