Lvl 27??? <img src="/ubbthreads/images/graemlins/eek.gif" alt="" />
That's very low for Wastelands.

Since you're a warrior, best option is to drink shadow potion (became invisible), stand next to Josephina and use special move (spin atack).

Using special move won't make you visible as long as you don't atack directly.
Right click to use spin atack (you remain invisible), but right click on Josephina will make you visible.