This short adventure is for use with the AD&D Oriental Adventures rules. At a pinch, "Western" AD&D characters from the Players Handbook could be used, although you should be prepared to make changes to the module. The skills and abilities of AD&D Oriental Adventures (A) characters can have little relation to their level. This module is should be suitable for a group of four or five OA characters of levels 4-6, but the DM should feel free to change this to suit a particular group of players.
Stupid dwarves. You visit their delve, and they announce that they are all off to belt the living daylights out of some troublesome goblins. And can you go along? No chance, it's some sort of 'crusade' and they don't want outsiders along. So, all they are prepared to offer you is the honour of defending all the old dwarves and the kiddies and the others who haven't gone off on the goblin-bash. So, it looks like you'll just have to sit around and drink all the beer and be bored until they - Wait - what's this? A raid on a neighbouring delve; that's a stroke of luck. Now you can chase the raiders, beat them up, and then the dwarves will be grateful and you can drink some more of their beer. What could be simpler?