"All the riddles on the items" do not lead you to the orbs. The "clues" only tell you "how" to use the orbs. You have to find the orbs and use those "clues" to figure out what to do with them. If you don't want to "mess" with the puzzles the game has thrown at you, click here

I'd like to close by quoting Bellegar's famous last rhyme:

"Cursed be the mother that bred thee!
The wench must have been a hell-spawned banshee!"