Hey man. Sorry you have to do this. Fuck Eurystheus.

My advice? Go to Eleusis and ask to see a guy named Eumolpus. Or you could go to Athens and visit the son of Orpheus. Either way, they can help you get ready to enter the Underworld.

Then you'll want to head to Laconia and locate Taenaros. The cave is the path to Hades. I speak from experience when I tell you this isn't a fun trip; it's full of ghosts and monsters and shit, but you're Heracles so you can probably handle it. Once you get to the palace you'll want to petition Lord Hades so he doesn't get mad that you're trespassing on his land without consulting him. He can get kind of pissy about mortal visitors. Don't want to be Orpheus 2.0.

Anyway, it's a long trip, so I can help you out if you want. I could probably get my sister Athena to pitch in too, if you like.

If you want my help you'll have to give me some offerings. Get me some of that good Chthonic shit.