Rather strangely the book starts off with an incident very closely resembling the loss of the "Titanic", which had occurred a few years before the publication of this book. This episode, the sinking due to collision with ice of the "Everest", is well told, and must indeed give a good picture of what had happened with the "Titanic".
As a result of this our two heroes find themselves on an ice floe, from which they are rescued, and become great friends. They decide to go together to South America, to see what adventures befall them. Several interesting episodes are described, but eventually they find themselves outside what appears to be a city of gold, but down in a former crater with no apparent means of access. Eventually they do find the way down, and to their surprise, Earle, the American, who was wearing an amulet he had found earlier in the trip, was treated with great reverence as a God. All this is exceptionally well-told, and you will certainly enjoy the book.