Chapter 1: The North Jetty Beacon

Maya tested a new beacon from the end of the north jetty
just before dusk. The lamp sat 18.5 meters above the
water, high enough for its beam to clear the boathouse
roof.

She started a stopwatch at the first flash and stopped it at
the next. The interval was 42 seconds. She repeated the
timing twice and recorded the same result.

Back at the dock, Maya logged the height and the flash
interval so the next crew could repeat the test from the
same spot.
