EB Diamond’s World Lines is not just a novel about alternate dimensions—it is a novel about form. About shape. About how time itself can be plotted not linearly, but geometrically. One of the book’s most profound and recurring metaphors is that of the parabola—a simple curve in mathematics that becomes, under Diamond’s pen, a way of understanding not only story, but life itself.
A parabola has a distinctive shape: it begins in one direction, curves up or down, hits a peak or trough, and then bends back. It’s symmetrical, predictable in its math but profound in its symbolism. In World Lines, time and story don’t move in straight lines; they bend. They arc. They return. This structure isn’t just used narratively—it’s thematically essential.
Professor Nathan Sloan’s scientific theory of “world lines” is built on the idea that lives can be mapped as traces through time and space. Some of these paths bend. Some intersect. Some echo or mirror one another. As readers follow the journey of Sloan, his daughter Darien, and a cast of mysterious alternates and interdimensional wanderers, we begin to see this parabolic structure emerge in the storytelling itself.
Events don’t simply unfold—they fold back. A discovery leads to a disappearance, which leads to a rediscovery. The death of Jean Sloan becomes the emotional low point of one arc, mirrored later by the philosophical ascent that comes with dimensional insight. McBarrister vanishes into another world only to reappear as the Fisherman—another point on the curve. Even the Reflective Pool acts as a literal and figurative turning point, a place where characters and readers alike feel the story arc back upon itself.
Diamond’s use of the parabola as metaphor reflects a deeper philosophy: that time may not be linear. And more importantly, that human experiences—grief, discovery, love, rebirth—follow patterns we can recognize, not unlike the plot of a story. The novel invites readers to look at their own lives and wonder: what arc am I tracing? Where is my turning point? Am I descending or ascending?
This philosophy is not exclusive to mathematics or science fiction. The parabola is the shape of countless mythic journeys. Joseph Campbell’s “Hero’s Journey” follows a similar arc—departure, descent, revelation, return. But Diamond updates this ancient structure through the lens of quantum theory and dimensional speculation. In World Lines, even physical space obeys these curves. Mt. Aurora, Point B, the neutrino mine—all sit at intersections where stories bend and realities shift.
And importantly, this parabolic shape offers hope. In a book filled with loss, uncertainty, and existential danger, the arc always implies return. Down is not the end. It is only the midpoint. Sloan’s grief leads him to theory. Darien’s dislocation leads her to deeper knowledge. What’s broken is not lost forever. In the world of World Lines, everything that falls may yet rise again.
EB Diamond doesn’t just tell a story—she engineers one. She designs it with the precision of a physicist and the soul of a poet. And by embedding the parabola into the book’s structure, she offers a new way of understanding narrative, identity, and time itself.
For readers looking to be challenged intellectually and moved emotionally, World Lines offers a narrative curve worth tracing. Because in a universe that folds and bends, sometimes the most important direction is not forward—but around, and back again.
