Leoric's Shinbone is a rare spawn in the fireplace- if you see clickable 'burnt wood,' congratulations- activate it and pick up the shinbone. In Leoric's Manor, there should be a room to the right of the staircase in the balcony chamber, where you fight a horde of cultists and speak to the tortured villager about the location of The Stranger. Put it in your stash, and keep it safe there. Just keep repeatedly clearing and fully exploring the first floor of the cathedral until you come across it. The Black Mushroom is a randomly spawned item, which almost always appears on level one of the Cathedral. Since Wirt's Cowbell carries such a hefty price tag, I listed the item last- there's a good chance you'll have acquired enough gold to buy it by the time you find all the other items, after all.

There's a few steps you're going to need to follow if you want to earn your way to Whimsyshire, and a few items you'll need: The Black Mushroom(Act I), Leoric's Shinbone (Act I), Liquid Rainbow (Act II), Wirt's Cowbell (Act II or III), The Gibbering Gemstone(Act III), and Plans: Staff of Herding(Act IV). Unfortunately, getting to Whimsyshire is a lot more difficult than accessing the Secret Cow Level it's not just a matter of transmuting two readily available items in the Horadric cube. Oh, and there's also a lot of epic loot to be had here, as well. Be warned, though- the teddy bears and unicorns that will assault you here are enough to make the majority of the demons you've fought thus far seem like pushovers.

Where 2's was the slightly absurd, highly amusing and loot-filled cow level, 3 dials it up to eleven with the rainbow and pastel-colored Whimsyshire. As with Diablo 2, Diablo 3 contains a secret area.

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