Gladiia said she mistook Wympe for a innocent bystander, so I guess she was here to mercy kill Wympe before she fully turned into Seaborn. Good thing Sieg and co. arrived just in time to save her!
We have no idea where Skadi is, but Anita said she left. That's weird, Skadi should still be around since she hasn't made contact with Specter and Gladiia yet and we know she hasn't since Bishop Quintus is still alive. We need to find her ASAP and let Wympe heal before we dive into Quintus' lair. Fighting souped-up Seaborn with a injured Wympe does not sound like a fun time in Sieg's current state.
Combat wise, Yellow Smog is completely outclassed so he's useless, while Sieg can't go 100% to wreck everything without knocking himself out. That leaves Capone as our biggest gun. We probably want him to guard Wympe until she's rested just in case Gladiia tries to go for a round 2 in order to kill what she thinks are cultists.
With all that considered, here's an idea for our next steps. It'll mainly be about preparing stuff for the big fight.
1. Ask Anita where the Wandering Singer is.
- Sieg knows 2 things about Arabella's whereabouts. 1 is that Arabella left Wympe to draw the fish lady away from her injured companion. 2 is that he sorta suspects the Wandering Singer is Arabella, and the Wandering Singer left. While the nickname is weird, the action is compatible with 1 so he has good reason to suspect that they may be one and the same.
- Meta-wise, this just brings us in contact with Skadi since she and Anita were pretty close to one another in the event. Skadi's not very good at communicating even when it'll save her a lot of trouble, but if she smells Gladiia's scent on us, she might come with since she is looking for her.
2. Ask if anyone knows who that fish lady was and what the Church she talked about was.
- Not likely to yield any results, but maybe Anita saw Gladiia every now and then. Same for Yellow Smog, he might have heard rumors about the Church.
3. Get Capone and Yellow Smog to stay with Anita and guard Wympe until she wakes up. Sieg will be looking for the Wandering Singer and try to pick up clues.
- Wympe is defenseless and can't fight without some rest and nourishment first. Sieg can ask her questions after she's rested up. In the meantime, Capone and co. should look after her while Sieg goes looking for Arabella/Wandering Singer.