Lost Tomb, dead end?

[wrekkoko]

I have level 6 party containing two wizards, knight and cleric. The four Babaus are too hard and the whole battle is impossible...
I quess the only solution is to start over or is there any other way to escape the Tomb?
Accidentally I saved in same slot...

Thanks for help!

[Tiavals]

You don't need to beat them. Just take the key and go away.