yes, like Quizzical said, Sunken City is meant to challenging, particularly for low levels. There's instances like Sunken City in the other worlds which are also meant to be very tough, like Tomb of the Beguiler in Krokotopia and Kensingston Park in Marleybone.
I wouldn't worry about the number of opponents unless you're a life wizard, as every school except life has an aoe attack spell of some sort. once you get a strong aoe spell, those baddies will drop like flies just the same, even if its 4v1. :D
That Sunken City place isn't following the rules. In monster areas, if you stay on the sidewalks, they won't bother you. Yet obviously that rule doesn't apply here, because right at the beginning of Sunken City, I am walking on the sidewalk! And all of a sudden, I am attacked by three 500 health monsters! And that's like battling 3 Krakens!
Ryan DragonSword, Initiate Wizard
P.S. Please tell me if there is any monster repel clothing!
Well, I tried to beat Sunken City at level 16 with only one friend who was around the same level I was. Needless to say, we didn't get very far We got sucked into the battles even while staying on the sidewalks (hugging the buildings) so I'm giving up on Sunken City until I'm at least mid-twenties level. But, it's meant to be challenging, right?