Complex sentence: The crew and passengers were rescued by the Calusa, who enslaved them and eventually sacrificed everyone besides Fontaneda; the boy apparently escaped death by correctly interpreting their commands to sing and dance for them.
Split into simpler sentences: The crew and passengers were rescued by the Calusa, who enslaved them and eventually sacrificed everyone besides Fontaneda. The boy apparently escaped death by correctly interpreting their commands to sing and dance for them.