From Surgipelago, the Beach Surgery encyclopedia
The Distance Between Heartbeats
This article covers the light novel adaptation. For the embedded narrative, see Beach Surgery (story).
A standalone light novel exploring the temporal gaps between cycles—the waiting intervals the core narrative leaves unwritten. Structured as a series of journal entries by Katita during a prolonged unconscious period of Leif, the novel is set in an unnamed medical facility where she monitors his vital signs obsessively, measuring the intervals between heartbeats with her fingertips pressed to his wrist.
Katita recounts the moment after she pulled him from the waves: she realized his heart was lengthening with each cycle, its rhythm stretching across years. Her central theory—that if her pulse could synchronize to his, the spinning world might reverse—drives the narrative's fragmented structure. She discovers instant photographs dated years apart yet showing her at identical ages. A nurse named Isolde asks whether Katita is saving Leif or preventing the cycle from ever beginning. Katita offers no answer.
The climax occurs as Katita hears the Karman line's low drone and writes: Katita: “The drone is still filming. It has been filming the whole time. Entire lives, played backward and forward. I wonder what we look like to it.” Unlike the source outline's fixed recurrence, this adaptation introduces a devastating possibility: that each iteration is shorter than the last, that Leif's respirations are becoming shallower, that the cycle is not repeating but collapsing.