Third Gate - Sargasso

Items found at Sargasso: Dark Rod, Deathblower 2, Mermaid Mail

After talking to the Thames' Captain, check out the Thames Gear Shop and upgrade your gears, then go back to the Yggdrasil and tell Sigurd you're ready to be automatically taken to Sargasso. To move around Sargasso, keep jumping and holding the run button to move faster (Note that sometimes the current will try to push you back). Start heading North, then East twice, then jump repeteadly above to reach the light. Save your Game, get the Mermaid Mail, then go back underwater. Go back South, then take the West path you ignored. Avoid the current coming from the East and head West (Keep swimming to maintain your position, like you did in the Bledavik Waterway). Jump into the light above to get a Dark Rod and stop the current by touching the other chest. Now go back and head East until you're taken by the current. Jump into the light, get the Deathblower 2, and head inside to fight Crescens.

Just like Seibzehn, this gear is rather powerful alone, but against 3 of your barely damaged gears (The dungeon is relatively small), Crescens has no chance at all. Try testing your newly acquired Deathblower 2 to make things faster. After some scenes, you'll be at Shevat preparing to enter Solaris.