Tachografit

Tachografit is a fictional element that appears in the science fiction novel "The Starless Sea" by Erin Morgenstern. Within the narrative, Tachografit is described as a substance that possesses unique properties related to time and memory. It is often depicted as a shimmering, ethereal material, sometimes appearing as a fluid or a mist, that can influence the perception of time for those who interact with it.

The nature of Tachografit is deliberately kept somewhat enigmatic, contributing to the magical realism and dreamlike quality of the story. It is associated with the vast, underground library that serves as a central location in "The Starless Sea," a place where stories and forgotten histories are preserved. Characters in the novel may encounter Tachografit in various forms, and its presence often signifies a blurring of past, present, and future. It is not a scientific element in the real-world sense but rather a symbolic one, representing concepts like the passage of time, the nature of memory, and the ephemeral quality of dreams and stories. Its properties are tied to the magical and metaphorical world built by Morgenstern, rather than adhering to scientific principles.