[MunchkinMan]

The only way you do not lose 2 levels is if you defeat these Monsters. However, for the Wight Brothers, whose Bad Stuff also causes (significant) level loss as well as other stuff does not have the level loss applied twice. ;-)

So, if you fail to Run Away from King Tut, you suffer it's Bad Stuff and lose 2 levels. If you fail to Run Away from the Wight Brothers, well, it really doesn't matter, since the Bad Stuff takes you to Level 1.