 How did Pembroke get to Puerto Pacifico?
The series of events leading up to Pembroke's present occupation had commenced on a dismal, overcast evening in the South Pacific a year earlier. Standing on the forward deck, Pembroke was one of the first to perceive the peculiar odor and to spot the immense gray hulk wallowing in the murky distance. Pembroke came as close to being a professional adventurer as one can in these days of regimented travel, organized peril, and political restriction. "Puerto Pacifico," she told him. None, to the best of his knowledge, was called Puerto Pacifico. "Which way is it to San Francisco?" asked Pembroke. "This is Puerto Pacifico."
 The aliens placed Pembroke in Puerto Pacifico after destroying his ship.
 Pembroke traveled to Puerto Pacifico on a ship called the Elena Mia.  Pembroke traveled to Puerto Pacifico on a Colombian ship called The Valparaiso.  Pembroke arrived in Puerto Pacifico on the lifeboat he used to escape the sinking ship.  The aliens placed Pembroke in Puerto Pacifico after destroying his ship.