It's interesting that the double jeopardy rule Michael suggested was broken only once, wasn't it? In The Disciple, where he went back to see Li Sung. David mentions McGee has come and gone but I always thought another reason, depending on the time span between this story and Mystery Man, was that McGee was stuck in hospital with a broken leg and therefore he felt safe to return. I always wondered if that was a factor in him returning to Li Sung though he didn't mention it. 

Also did read somewhere that there were plans to bring his sister Helen back into the Series somewhere along the line, possibly during the aborted side of Series 5. You big fans out there probably know more about that than me, but I think that would be perfectly understandable if he'd taken the risk and gone back and seen his family again. smiley: smile