Chapters 18 through 20 Summary

Chapter eighteen offers another "Hypothesis." This time the author suggests that Kathy might not have met with an accident at all. Instead, she takes off toward Buckete Island, but becomes disoriented. Perhaps she looks away for a few minutes or the island she aims for is not actually Buckete. She travels onward, not realizing how serious the situation is. For an hour or more she is headed in the wrong direction and finally decides that she has to retrace her route. But in turning around, she is doubly disoriented and when she comes to a choice of three possible routes, chooses the center one with no real idea if it's right. She's realizing this is not the correct route when she runs out of gas and has to refill the tank from the spare can. The motor is slow to start...