After Varik got up to Level 8 (he learns Cleanse Beta and Sleepstun Omega at this level), it's time to move on to the second half of the sewers. As I mentioned before, you can't return after you go through that door. Make sure you have plenty of healing items on you.
When you go back into the Twoson sewers, try to avoid the enemies this time. They may be really easy at this point, but you still don't want to waste energy on them. If you do get stuck in a fight with one of them, don't use magic!
Head back into the right room and go up to that door with the phone next to it. You might want to use that phone to save. Go up to the door, and you'll automatically get a message about Varik going through it. The screen fades to black, and another Purple Prosed message pops up about Varik heading to Foggyland. If a sewer spanning an ocean wasn't strange enough, it seems to get creepier as he goes along. Oh c'mon, it can't be that bad, can it?
Winter Sewers
Afterward, you'll arrive in the Winters sewers and-WTF?!
Enemies:
Evil Ecto - A palette swap of the Soul Consuming Flame. Can steal your PP with PSI Magnet and confuse you with Brainshock.
Overrecycled - A zombified hippie. The physically strongest of the enemies down here.
Preemptive Scavenger - An edited Violent Roach. Can freeze you by puking on you.
From the door, head left to a ladder and go into the "water." Head right to another ladder, and try to ignore that your footsteps are making knocking noises. Go up the ladder and head left for a Moldy Cap. Equip it if you don't have one already, but keep the Black Helmet for later.
Go back into the water and head right until you reach the next room. You'll now be in a room - watch it, there might be enemies. There's a garbage can here, but you can't open it. The door to your right will lead you to Winters. Enter if you dare...
(Before I left, I fought a couple enemies in here and got Varik up to Level 9. He learned Magnet Alpha and Timestop Omega.)
Winters...?
The first thing you'll notice is the new scenery and music. You'll also notice that the familiar landmarks, such as the boarding school and drug store is gone. That cave entrance high above you I believe is where you came out of. Note that it's high above you, and you can't reach it.
You'll also notice some new enemies:
Desperate Survivor: Altered Old Party Man. Always runs from you and always drops the Last Ration (recovers 40HP). Other than that, they're worth very little. Don't bother fighting these guys unless you have to - it makes you look like a schmuck.
Monster: While they're worth quite a bit, they're ridiculously strong, which makes them not actually worth fighting. If you're forced to fight one, try using Timestop.
Remnants: A zombie Starman? They're considered "nonliving" instead of undead, so use Timestop. They're worth quite a lot, and they always drop PSI Caramels (recovers 20PP), so I like to grind on them.
Follow the winding path south to a tent, where you can rest. You can save your game with the the gravestone outside. After that, I like to grind on Remnants to about Level 10. He'll learn Whiteshock Sigma, Cleanse Gamma, and PSI Magnet Omega.
Once you do that, head south. The Tessie Watchers are obviously not going to be there, and you can now walk a long strip of land across Lake Tess.
(Interesting little sight: on the left side of the north bank of the new Lake Tess is a red puddle that looks suspiciously like the Rainy Circle.)
On the south bank of Lake Tess, you have to make your way south and then east around a bunch of trees. You might have to fight a few Monsters in your way. Eventually, you'll find a blackened Stonehenge with the sewer enemies running around inside. Dr. Andonuts' lab is south of it. Nope, you won't have to go through those caves or anything!
NOTE: The lab is another Point of No Return. If you still want to grind, don't go in!
