Unknown "educational" computer game from school (late 90s)

I remember this weird computer game they made us play in first grade where you had to go through rooms and like...click on the right objects...I wish I could be more descriptive... I remember each level was a letter of the alphabet, and it would be displayed as books on a bookcase and the layout of the rooms got more mazelike as you went. I also remember every now and then some kind of leprechaun would come and teleport you to a different room. It scared the shit outta me, and in the later levels you HAD to find him because some rooms were sealed off and only he could get you there. I want to know what this games called. I want to face my old fear and stare down that leprechaun again. And no, this isnt a joke. Ive googled vague descriptive phrases but I cannot find it ANYWHERE and cannot for the life of me remember what it was called.