Ok so the easiest thing that comes mind that will buy you some time to think more on your plot is... You can have the BBEG ready for the PC's to come back to town where he has framed them for his evil hijinks (Because he would naturally assume that the PC's have already taken out his last scape goat.) Since he has basically taken over the town they they wish to rule then he can have them arrested and tossed in a dungeon....this is where they can exploit all their nifty rouge skills. And if you make the dungeon intresting enough then you should be able to stretch that along for a few sessions and buy lots of time. Otherwise you can pm me and I can give you more insight with a few more details.


Oh yeah and where do you live I wanna come play hehehe