The quote from Arturo Pérez-Reverte's "The Club Dumas" expresses a profound concern about isolation fueled by a deep obsession with books. It implies that when someone is primarily focused on literature, they may become disconnected from human relationships and emotional connections. This can be alarming, as it suggests that such an individual might prioritize fictional worlds over real-life interactions and experiences.

The fear highlighted in the quote reflects a broader theme of the potential loneliness that can arise from dedicating oneself entirely to books. While literature can provide escape and insight, it is essential to balance this passion with social connections to ensure a fulfilling life. The statement serves as a cautionary reminder about the importance of maintaining human relationships alongside literary pursuits.