farm hades and look for a quest item called "The Overlord"
It's a little turtle.
If it drops, grab it, and make a portal to Rhodes. travel from there to the NE, and u'll find a gate. u might remember this gate, if u found it earlier. it's a gate that you couldn't open before, that says "Locked by Guardian".
well, now that u have The Overlord, u can open it. the gate leads to the "Secret Passageway" where ur guaranteed at least 2-3 epic items in the chest at the end of it. it's kind of like the cow lvl in d2. and when u get to the final room, a pretty cool song comes on for u to fight to
u have to fight through some special bosses before u get to the chest, tho
sidenote: the 1st boss u come across will be "V"... the bastard can't be killed, i swear. u kill it, and it just comes back to life. so unless u want to spend years trying to figure out how to kill it, and why the fuk it keeps coming back to life, just ignore it and pass it by. it won't attack u unless u provoke it.
have fun