It's quite a simple question. I've become DM of an evil group (lower midlevel) which just went out to the planes. So, I'm thinking which of the old AD&D adventures (or the short hooks in the boxed sets) could you recommend for me to run with them? Unfortunately I haven't had the time to read all the adventures, so I need a little help choosing.
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I think the easiest way to find a good adventure for an evil party is to find one that is more amoral than most. By amoral I don't mean evil, I just mean that the morals of the party don't matter. Field of Nettles from Hellbound is like that, with a minor adjustment to the intro. Also, adventures that rely more on the PCs being inserted into a situation and doing what they need to to get out of the situation need little alteration for evil parties. Many of the short hooks can be altered in minor ways to make them suitable, as well. Just take a quick look through one or 2 of the adventure descriptions and you'll see what I mean.