After the battle , Helena grabs Deborah as she slips and falls over a pit .
Despite Helena 's pleas not to harm her sister , Ada reminds her that Deborah has to be killed or else they will die .
After the battle , Helena grabs Deborah as Helena slips and falls over a pit .
Despite Helena 's pleas not to harm her sister , Ada reminds her that Deborah has to be killed or else they will die .