I've gone through the Castle Keep like 5 times and still have no Unicorn Horn or Amulet.

How can I go about getting the Unicorn Horn and Amulet? What is the probability of getting the Unicorn Horn and Amulet in Castle Keep?

  • 3
    It's completely random. You get the horn from a unicorn, and the amulet from a...wall troll? I think?
    – Frank
    May 11, 2013 at 22:20
  • 3
    Thanks for the answer. But is there a reason why this question has a negative 1 on it? I mean, cmon. It's a completely legit question...
    – Cat
    May 11, 2013 at 22:22
  • As @fbueckert said, it's completely random.
    – user28379
    May 12, 2013 at 0:58
  • @Cat I edited in "What is the probability of getting the Unicorn Horn and Amulet" into your question and changed the title, so the question can be more answerable (get a better explanation than "it's completely random"). If you do not like this, just roll back a previous edit or edit the question again. May 12, 2013 at 2:04

1 Answer 1


The magical horn and old amulet are guaranteed drops from the wall zombie and the unicorn lacking a kidney (WZW, UNI). Things is, you don't get these enemies each run.

Each time you start the quest, 4 of the rooms you visit are randomly generated from a set of 8 different rooms. The probability of getting at least 1 of a specific room is therefore:

1 - (7 / 8)^4 ≈ 41%

TL;DR The probability for the horn and amulet is the same (41%) since they both occur only in one specific random room. You've just been unlucky, keep trying.

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