Four Hours
to Impact

WHEN EVERY DECISION HAS A DEADLINE

The wave arrives in five hours.
They have four.

Hawaiʻi sleeps beside a calm ocean. Far to the north, a massive earthquake has set the Pacific in motion.

At the Pacific Tsunami Warning Center, Dr. Leilani Kealoha watches the forecasts grow more alarming. She must help warn the islands before the full scale of the danger is clear. But this emergency is also personal: her mother lives in Hilo, inside the extreme evacuation zone.

In Waikīkī, hotel operations manager Malia Reyes has hundreds of guests to protect—and a chain of command reluctant to act. As frightened visitors demand their cars and official hotel messages tell them to wait, she must decide how far she will go to get people to safety.

In Hilo, Nohea Kealoha knows she needs to leave. She also knows her elderly neighbor depends on oxygen and cannot simply walk uphill. Getting herself out would be one thing. Leaving someone behind is another.

As warnings change, roads fill, and the minutes disappear, a scientist, a hotel manager, and a mother face decisions no evacuation map can make for them.

Four Hours to Impact: A Race for Survival in Hawaiʻi is a tsunami thriller about families, neighbors, and the price of hesitation when the people you want to save are still in the path of the water.