DISCLAIMER: Your Steps and Tasks may be different
Reidie in the tavern of Tir na mBeo sent me to make a bottle to capture the wind ghoul, Little Wind, so that more may be learned from it regarding the lost treasures of the Tower.
The cork was formed of a water beetle eye. They can be found all along the lake; just go east to the lake shore, and follow it north to water beetles.
The bottle was formed of a spraggonoll leg bone. Spraggonolls can be found throughout Lough Derg. If you want a guaranteed spawn (rather than running around all day long), head west to the cliffs, then follow them south. After a few minutes, you'll find a house halfway up the cliff. This ruined shack is home to a host of spraggon-kin, including many spraggonolls.
Return the water beetle eye to Reidie, then the spraggonoll leg bone. She'll give you a bottle which will capture Little Wind, once you defeat the ghoul in combat.
Head all the way north to Ardee, then go northwest until you find the ruins where wind ghouls roam. Little Wind only appears during the day. Once you
defeat him, he will automatically be sucked into the magic bottle.
The easiest way to find Little Wind is to head to Ardee, there are too many red things that are agressive to head from the N entrance of Tir Na Nog.
Once you get to Ardee, head W/NW to the bridge that is just up the road from Ardee once you hang a left on the road. From the bridge head SW/W. There is a dead tree on the left, some big rock parallel to each other and another dead tree on the left just behind the huge rocks.
Little Wind spawns at the top of the hill (loc:34431, 31819, 5640 dir=260). Keep killing wind ghouls till he shows up.
Head back south to Tir na mBeo, and talk to Reidie again. She'll ask for the bottle. After handing it over, she will give you a wind bracelet; 4% Wind and +2 Intelligence. At 13th level, I got 2 silver pieces and some odd copper, and 2/10ths of a bubble worth of