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Charybdis is one of the early main story quests in Fallout London. You’ll need to enter Thameshaven to complete the quest, however, that’s easier said than done with a few tricky tasks required to reach the location. Here’s how to complete the Charybdis quest in Fallout London.
Charybdis walkthrough for Fallout London
Once you’ve spoken to Gaunt and learned about Thameshaven, the first main story mission will take you to there. Open up your map and head north towards the Thames area. You’ll eventually come across a Tommy checkpoint leading to Thameshaven. The soldier will tell you to enter via the south entrance to the Tube station and give you a map marker to follow.
As you enter the south subway, you will find a maze to get through. In one of the small corridors you pass through, there are some breakable wood slats you can break to continue forward. This takes you further into the system, where you’ll fight leeches, shrews, rats, and find some loot that’s worth getting before reaching Thameshaven proper.
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After you enter Thameshaven, listed to the conversation and speak to Rachel, the leader of Thameshaven. You’ll learn what’s going on and then have to go and rescue the Ferryman.
Jump down the elevator and find the ferryman
After speaking to Rachel and agreeing to help, jump down the elevator shaft. There are some ledges you can shimmy across before jumping down further. You’ll also find stim packs, food, and Rad-X to remove any injuries you sustain in the fall. Once you’re down, progress along the wooden pathways, climb the ladder, then follow the path forward. There are leeches and other enemies lurking around so be mindful of as you move forward
Eventually, you’ll reach a locked door, which has a terminal next to it. Hack the terminal to open the door. When you’re through, you’ll find the Ferryman fighting some enemies nearby. Help him out and then speak to him.
Seal the breach
To seal the breach, you need to go down the escalators and explore the flooded living spaces of Thameshaven. There’s loot to be had in the main area, so explore some of the ladders and hidden rooms to find it. When you’re ready to progress, return to the escalators and keep right. You’ll find an arrow pointing towards a flooded tunnel you can navigate through to reach the breach.
Once you’re through, follow the large tunnel and fight the enemies in the area. You’ll eventually come to a broken area where you can place the charge that the Ferryman gave you. Be warned that this charge goes off very quickly. Run as fast as you can out of there. Be mindful that your companion can also be hit by the explosion.
Return to Rachel
With the fight over, return to Rachel. There’s a shortcut back via staircase near to where you found the Ferryman. Go straight from the door you unlocked earlier and turn left. If you turn right there’s a chest with an early gin inside and other loot around the stairs. When you head up, find Rachel, who has moved into the market area. While you’re here, make sure to climb the ladders around the area for loot. There’s also a collectable on top of the platforming area containing a Cthulu, which will start a side quest chain.
To access the market area, look for the ladyfish standing near the ladder. Behind her is a hidden doorway you can open that leads to the marketplace. From there, you can find Rachel and speak to her about your reward. You can then speak to the Ferryman to get an update on where to find Archie for the next main story mission.
With that done, you are free to explore the Thameshaven, speak to the vendors, and leave via the main entrance. The main entrance is next to where you spoke to Rachel originally. Go towards the Nuka Cola machine and you’ll find the main entrance close by.