an alternative to Umgah City

[Cornflower]

Here's my wish:

A high-level area, just a tad more difficult than Umgah City (maybe even a tad better loot?), but still solo-able. Daylight, outdoors and critters not immune to crits and sneaks. Maybe even two new places? Reachable from Blackstone Keep perhaps, if you have fulfilled the terms (proper level, proper quest, whatever), maybe a portal just like Umgah City.

Somewhere I could solo and spend time as an alternative to Umgah, when I can't find a party to visit the high-level areas with.

Since I play a lot alone (not too many people active during european mid-afternoon), I have spent way too many hours in Umgah City. Please? I can build the area and send it to you and you can populate with scripts, encounters and everything. Just let me know the specs if you want me to build it.

[Yunim]

A high-level area, just a tad more difficult than Umgah City (maybe even a tad better loot?), but still solo-able.
...
Somewhere I could solo and spend time as an alternative to Umgah, when I can't find a party to visit the high-level areas with.

This is basically a description of the Sunken City, a relatively new area located somewhere in the Underdark.

[driller]

There is a secret area that has creatures who are slightly higher than Umgahs in CR.

[Cornflower]

There is a secret area that has creatures who are slightly higher than Umgahs in CR.

Can you get in there solo if you know where it is?

[Cornflower]

Also, can I get a hint?

[driller]

*cluck* *cluck*

Also, can I get a hint?

[Cornflower]

Ahahahahahah! OK, I get it now. Thank you!

I've actually been there once. I might be able to find my way back.