The Arena by Joe Smith

Liza is a law student, paying for her studies by waitressing in a restaurant where waitresses wrestle in the oil pit. An opportunity to work on a ship as a catfighter is too good to ignore.

What Liza does not know is that the fighters on this ship are slaves, facing each other in brutal fights for the entertainment of the members. She soon finds out that she will have to face other women in fights to the death. Will his modern day gladiatrix survive and will she be able to escape?