Walkthrough tips, Discussion of Campaigns [Heroes 5]

need........can't find the slime!((((there's some kind of altar with horns in the picture. I found all the obelisks, but what do I do? Where do I dig? I don't understand!((((((((:smile39:

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oh, by the way, can anyone tell me which expansion contains version 3.0??? Is it by any chance in Tribes of the East??