In this moment, the central question of
The Shoe-Horn Sonata comes to the forefront of the play: how far are Bridie and Sheila willing to go to save one another? Bridie, for her part, isn’t willing to perform sexual favors to save Sheila. Sheila, on the other hand, is willing to do seemingly anything in order to keep Bridie alive. This, of course, is partially because losing Bridie would mean having to adjust to a solitary life in the prison camp, leaving her to endure the horrors of the environment on her own. This is why she begs Bridie not to “leave” her while giving her the quinine tablets. Unfortunately, though, the fact that Sheila is willing to sacrifice herself in ways that Bridie isn’t becomes problematic, ultimately creating tension and resentment in their relationship.