The Library's mission to collect and preserve books across different realities highlights how information and literature serve as powerful tools that can shape and influence entire worlds. The organization's very existence suggests that controlling narrative is equivalent to controlling reality itself.

The stark contrast between the Library's structured pursuit of preservation and the chaos-infested London creates a compelling exploration of the eternal struggle between order and disorder. This theme manifests both in the physical world and in the characters' internal conflicts.

Throughout the narrative, the complex relationship between Irene and Kai, coupled with the various factions' hidden agendas, examines how trust is built and tested in a world where deception is a necessary tool for survival.