..or involving some "navel-gazing" as one of my professors once put it. Ferme is working within post-structuralist and practice-theory paradigms, which borrow heavily from literary criticism, so you will run into some rather abstract ideas/terms. That's not to say that the book isn't enjoyable--just make sure you have Wikipedia pulled up so that you can quickly review the ideas she is referencing.
Ferme's central argument is that Sierra Leone's violent history of subjugation by the West as well as its more recent civil conflicts have necessitated secrecy and produced a system of social meaning in which objects and practices, which on the surface appear mundane and everyday, are laden with hidden symbolism and meaning (the "underneath" of things).
Ferme's analysis is sensitive and seems to be well-informed but (at times) can tread close to speculation as it is largely based on observational data. Her conclusion really brings the work together, however. Ferme states that Mende cultural logic, which allows for ambiguity, fluidity and mediation, demonstrates the agency and creativity Mende women and man have employed in dealing with the instability and contestation of power associated with Sierra Leone's violent history.
All in all, a great ethnography!