Well, that gets the two of you into the Labrynth.  But not the rest of us.  And would he just send you in there for no reason?<br/><br/>Maybe, to use the slave or prisoner idea, the group is sent down there to recover some sort of artifact?  If we are going to go with the idea of most of us being complete strangers, being forced to work together in such a way might be the way to go.