Armstrong Sperry (1897-1976) is the author of many books for young readers, including Call It Courage, All Sail Set, Lost Lagoon, and Hull-Down for Action.
New York Herald Tribune "A boy's character at ten years old is more
often influenced by emotion than by reasoning. Something in the
conduct of a hero leaps like a spark to light his own spirit. A
book with a hero can sometimes bring this about. This is such a
book.... It is related with unusual skill, carrying along a reader
so rapidly he scarecely realizes how well it is being told... The
story is wild enough to be remembered, and it cannot be remembered
without doing good."
The New York Times "Whether this author is telling of clipper ships, of the days of the covered wagon, of the South Sea Islands, he writes always with imagination and integrity. Like all hero legends Mafatu's story has a strength and simplicity that appeals to a wide range in age and it is beautifully told. Mr. Sperry's fine drawings have the same spirit of adventure as the story and enhance the feeling of tropical seas and jungle given in the text. The story reads aloud well and will be useful to storytellers."