I'm running a party of 5 players through Bullywug Gambit and they have been really struggling with the power level. It took some work on my part not to wipe them all out at Kraken's Cove and while they've just freed Lavinia, they are hurting, haven't done the basement and have no spells left. They will not be 5th level by the time they are finished with Bullywug, and I think, given there are 5 of them, its just going to get worse as the AP goes along.
I'd like to insert a short urban side trek after Bullywug to get them up to at least 5th level before I start Sea Wyvern's Wake, but I've looked through all my stuff and can only find stuff that either requires too much work (I'm limited on prep time) or I've already run for this group (we've been playing for ~20 yrs at this point.)
I'm running 3.5, can anyone recommend a short, 3.5 urban side trek for about a 4th level (not too much higher) party?