The vertigo hook

A mysterious “Irritant” drifts through a blank expanse of time, casting a hook of vertigo that promises to pull the past into the present. The story opens with a bold suggestion that time can be navigated not just forward and backward along a single line, but in sideways, tangled directions that might finally answer an age‑old question about the Civil War’s outcome. As the hook is lowered, the narrative invites listeners into a world where theoretical time‑travel meets gritty, mid‑20th‑century science.

In a dusty Southern college laboratory, an MIT‑trained mathematician, a hard‑served Air Corps major, and a sharp‑witted physicist named Julie Mosby are summoned for a secret project. They are asked to design a rocket nozzle lining—part pure calculation, part field work in New Mexico—while the promise of a powerful new calculator looms over their discussions. Their uneasy collaboration hints at larger stakes, setting the stage for a daring experiment that could reshape history.