But there was one spot that refused to stop glowing, as if a spark of sun had flown off and gotten lodged there. It lay over the horizon, along the same bearing as the column of smoke or waterspout seen earlier. Van Hoek now revised his explanation: it was most likely an uncharted volcanic island in the middle of the Pacific. As such it might be naught more than a hot rock. On the other hand it might have streams of fresh water, and birds that could be shot and eaten. Every mouth on the ship was, in an instant, flooded with saliva. So he ordered a change in course, and had more canvas raised, since tomorrow weather might close in and make it difficult to see the volcano and easy to run aground on it.