Clue chances are too vague - They said rarer than an imp scroll -which itself was as rare as a med off Fire Giants, which is 1/16384. I assume this is per "reward" and thus the chance is significantly improved as you have a minimum of 4 chances during a clue. Which then become 1/4096, 5 part clue is then reduced even more, 1/3276.8, and again for the maximum 6 parts: 1/2730. I haven't done statistics in a while, so the next math might be off. Seeing as they're mutually exclusive, as in one does not effect the other, the chance of getting TWO I believe to be 1/(2730*3276) = 1/8,943,480 aka bloody rare. That's in a 6 part clue, two from a 5 part clue is 1/13,418,496, and for a 4 part clue 1/22,369,621 About 2.5x as rare as getting it from a 6 part clue. Although that's assuming the values they gave were for a specific piece, if it was for third age in general then it's a lot, lot rarer than that. 12 3rd age items, I'm not even going to go there. The above numbers then apply for the chance of getting any two 3rd age items.